unit 8

3. A close relationship between two species that benefits at least one of the species.
4. A consumer that eats only plants.
5. A consumer that eats only animals.
7. A series of steps in which organisms transfer energy by eating and being eaten
9. Place where an organism lives
13. An animal that eats both plants and animals
14. All the living organisms that inhabit an environment
16. part of Earth in which life exists including land, water, and air or atmosphere
18. A relationship between two species in which both species benefit
19. a system of interlocking and interdependent food chains.
20. A community of organisms and their abiotic environment
21. An organism that obtains energy by feeding on other organisms
22. organism that feeds on plant and animal remains and other dead matter
23. The study of how living things interact with each other and their environment
24. diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web
25. All the different populations that live together in an area

1. A relationship between two organisms in which one organism benefits and the other is unaffected
2. An organism's particular role in an ecosystem, or how it makes its living.
6. Nonliving components of environment.
8. An organism that breaks down wastes and dead organisms
10. total amount of living tissue within a given trophic level
11. A group of individuals that belong to the same species and live in the same area
12. An organism that can make its own food.
15. A group of ecosystems that share similar climates and typical organisms
17. A relationship between two organisms of different species where one benefits and the other is harmed