Name: __________________________________________________
Chapter 13 Homework
Principles of Ecology
1. Define ecology
2. In order list the levels of organization from largest to smallest:
3. The portion of the earth that supports life is _____.
4. __________________ is a group of the same species that live and breed in one area
5. _____ is a group of different species that live together in one area.
6. __________________Includes all of the organisms as well as the abiotic factors in a given area
7. Biotic factors are __________________________
Examples are:
8. Abiotic factors are _________________________
Examples are:
9. Define Autotrophs
What is another name for an autotroph
Give an example of an autotroph
10. Define Heterotroph
What is another name for a heterotroph
Give an example of a heterotroph
11. For the following types of heterotrophs, define with their feeding types and give an example
a. Herbivore:
b. Carnivore
c. Omnivore
d. Scavenger
e. Decomposer
12. What is the difference between a specialist’s organism and a generalist organism?
13. A simple model that shows how matter and energy move through an ecosystem is a ________
14. Each organism in the food chain represents a ________________ which show feeding steps and is
measured by the amount of biomass lost at each level
18. A _______________shows multiple feeding relationships at each tropic level in an ecosystem.
15. There are two types of ecosystems: List them and give an example of each
1.
2.
16. Biodiversity _____ the closer you move towards the equator.
17. Define Biodiversity:
Identity the following types of CYCLES:
_________________
___________________
__________________
________________
TRACE THE ENERGY AS IT MOVES THROUGH AN ECOSYSTEM IN THE FOLLOWING FOOD CHAIN:
18. Describe the direction that energy flows:
19. The relationship of the shrew is listed as a secondary _____________
20. As matter and energy moves from the grass to the owl, the amount of energy always (increases or
decreases) as the population of the grasshopper (increases or decreases)