Environment Review

1. ______ are living things that make their own food.
5. An ______ is a biological community of interacting organisms in an environment.
6. ______ factors include all of the non-living things in an ecosystem.
8. _______ are animals that only eat meat from other animals.
11. ______ is the variety of life and organisms in a habitat or ecosystem.
13. _______ is a measure of the total mass of living organisms within an ecosystem.
15. _______ is a series or changes in an ecosystem over time.

2. ______ are living things that get their energy by breaking down dead plants and animals.
3. ______ are animals that eat both plants and animal meat.
4. ______ factors are all the living things in an ecosystem.
7. _______ are animals that only eat plants.
9. ______ The plants and animals that live together in a habitat form a ______.
10. ______ ______ refers to a state of equilibrium (balance) in the community of organisms in an ecosystem.
12. ______ are living things that do not make their own food but get their energy by eating food.
14. A ______ is the natural home or environment for plant, animal, or organism.