Ecosystems

7. A simple, direct, and trophic, or eating, relationship among a group of organisms
9. the study of interactions between organisms and their environments
10. The maximum number of individuals in a single population
12. The living factors of an ecosystem
13. an organism that only eats autotrophic tissue
14. an organism's role in an environment

1. An organism that only eats animal tissue
2. A complex trophic relationship among a group of organisms
3. A term describing all the living and nonliving things in a certain location
4. An autotrophic organism at the bottom of the food chain
5. The non-living factors of an ecosystem
6. physical environment where a population of a single species live
8. an organism that eats both plants and animals
11. A group of organisms of the same species living in the same geographic area