4-1-Ch-5 Ecosystem File - E-Learning/An


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

       




 

 

 
 





 
 

 

 







           

        


 
        
         









        


         
        






       

         


           


















            

 




























 











    


       
        

      






         
          

    




        
        


      

    
     
    
     
       
     


    





         





        
        
         


        




      
         
       





   
      
       






      



      
       
















      




            


  

          
      
        

        
        







        








      
      
        
        
         

  
      
     
 
    
        

      
  





          





       


        




       








      

         




       




    

























       


  


      
    
   
        



          





   


        
         
       






     






     





         
          
        

            
 

















































       

    









































       


        



         
        












            









































       

       





        









      
        
        
       


     
      

      
      
       
        


        
        
        
          
       


    


       





       






         
    







    
      
         



        
         








          







         


            












       


        
          




        





    
          



     

    


        
      
      



          






    
  





  









        
     
       
 
         
        





        

       


        

       


  








            






        








      


      












 






       






       

    

       


        








        


    
















         


         












 

       
      
        
      




        




     




         

        




          



       
      







         

       
 
       






      


       
          


       
     
     








            
          

          


  
 
            

 

       
        

  



          













  











  

  



      
      
       
      
        
  



 

       
        
        
        





      
      
       

  

      







        

           
    

         




      






         

    

















      
      










         
        




      

        








      















      






         


       
         

     
        


        






     
     
       
  
          
       
            


        

 


     


         









          

      








  
         

   



   
      

        

     







        


    







        
         


         



       



        













 

            
         

       



        
           




        



        








      







       
       

           

        

       



        


        
       
       
       
   


       
     


          
   


      



         
       





        
 

 


      




      




      



      




        



        

      



 




       










 
       



    













        




















        
      
     

   
            



       





























        









      






      
   











  



    




        








         









        

























       
            

           



      

        
       
         


          


         











 

         


          
         
      
   

 
         


            









        

            

        

       
     


         




     











     

    







          




          









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








           
        




  







  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
             
 


       
      


 

         

 
        


           





        


 

 
 
 
 
 


































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