Ecology

3. physical rather than biological; not derived from living organisms
4. the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms
5. a group of people living in the same place
9. a group of living organisms consisting of similar individuals capable of exchanging genes
10. a system of interlocking and interdependent food chains
11. the action of withdrawing formally from membership of a federation or body, especially a political state
14. the series of processes by which carbon compounds are interconverted in the environment
16. a section, group, or type of people or animals living in an area or country
17. an organism, especially a soil bacterium, fungus,or invertebrate, that decomposes organic material
18. an animal that feeds on flesh

1. an animal that feeds on plants
2. the cycle of processes by which circulates between the earths oceans
4. a large naturally occuring community of flora and fauna occupying a major habitat, e.g. forest or tundra
6. an animal or person that eats food of both plant and animal origin
7. relating to or resulting from living things, especially in their ecological relations
8. the natural home or environment of an animal, plant, or other organism
12. a person who purchases goods and services for personal use
13. a person, company, or country that makes, grows, or supplies goods or commodities for sale
15. a hierarchical series of organisms each dependent on the next as a source of food