Ecology

3. Any living thing in an organism's environment.
4. The scientific study of all the interrelationships between organisms and their environment.
9. A biological community and all the nonliving factors that affect it.
10. The physical area in which an organism lives.
11. A group of organisms of the same species that occupy the same geographic place at the same time.
12. A role, or position, of an organism in its environment.
13. Any nonliving thing in an organism's environment, such as soil, water temperature, and light availability.
15. A close mutualistic, parasitic, or commensal association between two or more species that live together.

1. All the interacting populations of different species that live in the same geographic location at the same time.
2. A symbiotic relationship in which one organism benefits and the other is neither helped nor harmed.
5. The act of one organism feeding on another organism.
6. The relatively thin layer of Earth and its atmosphere that supports life.
7. A symbiotic relationship in which both organisms benefit.
8. A Symbiotic relationship in which one organism benefits at the expense of another organism.
14. A Large group of ecosystems that share the same climate and have similar types of communities.