Ecology Review

5. one organism eats another organism to obtain nutrients
6. the number of people, other living organisms, or crops that a region can support without environmental degradation.
7. representation of how energy flows in a ecosystem that includes all species
10. eats producers
13. level or a position in a food chain or ecological pyramid. It is occupied by a group of organisms that have a similar feeding mode
14. biological community of interacting organisms and their physical environment
15. living components of an environment
16. a relationship in which one organism benefits while the other is neither helped nor harmed

1. eats primary consumers
2. eats secondary consumers
3. representation of how energy flows in an ecosystem that includes one organism from each trophic level
4. decomposes dead organisms
5. a relationship in which one organism benefits and the other organism is harmed, but not always killed.
8. organisms that create their own food
9. a relationship in which both species benefit
11. when individuals or populations compete for the same resource, and can occur within or between species
12. nonliving components of an environment