Mrs. Keadle JH Science
Name______________________________ Period_____
Date Assigned____________ Date Due____________ Date Returned __________
Succession: Equilibrium in Ecosystems
Instructions
Read pages 586-588 and answer the following questions in complete
sentences.
1. What is a community?_________________________________________________
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2. When is a community in equilibrium?______________________________________
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3. What events can disrupt the equilibrium of a community?______________________
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4. What is succession?___________________________________________________
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5. Why is succession important for the Earth?_________________________________
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Succession: Equilibrium in Ecosystems
Mrs. Keadle JH Science
6. Describe primary succession?___________________________________________
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7. When does primary succession occur?____________________________________
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8. What are the first species to populate an area called?_________________________
9. How do pioneer species help other species to come into the area?______________
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10. How long can it take for an area to reach equilibrium?________________________
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Succession: Equilibrium in Ecosystems
Mrs. Keadle JH Science
11. Describe secondary succession.________________________________________
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12. Where does secondary succession occur?________________________________
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13. List human activities that can trigger succession.____________________________
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14. How are primary and secondary succession different?_______________________
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15. Which type of succession occurs faster?__________________________________
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Succession: Equilibrium in Ecosystems