Biology

3. the living things that affect an organism
4. an organism that feeds on plant and animal remains
6. eats only plants
9. illustration of the relative amounts of energy or matter contained with each trophic level
11. another name for an autotroph
12. an organism that eats both plants and animals
13. a series of organisms each dependent on the next as a source of food
14. a portion of the planet in which all life exists

1. another name for a heterotroph
2. system of interlocking and interdependent food chains
5. an organism that eats only meat
7. nonliving things that affect an organism
8. each step in a food chain or food web
9. scientific study of interactions of organisms with each other and with their enviroment
10. an organism that breaks down and absorbs organic matter