Environment

2. physical rather than biological; not derived from living organisms.
3. An organism that obtains energy by feeding on other organisms
7. a large naturally occurring community of flora and fauna occupying a major habitat
8. the state of being subject to death.
10. a group of people living in the same place or having a particular characteristic in common.
11. the ratio of the number of births to the size of the population; birth rate.
12. produced, occurring, or existing within a species or between individuals of a single species.
13. the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.

1. a biological community of interacting organisms and their physical environment.
4. of, relating to, or resulting from living things, esp. in their ecological relations.
5. all the inhabitants of a particular town, area, or country.
6. The ecological role and space that an organism fills in an ecosystem.
8. the doctrine that mutual dependence is necessary to social well-being.
9. interaction between two different organisms living in close physical association, typically to the advantage of both.
14. an organism that can make its own food by using energy from its surroundings