Ecology

2. a person, company, or country that makes, grows, or supplies goods or commodities for sale
3. a group of people living in the same place
5. a person who purchases goods and services for personal use
7. a large naturally occuring community of flora and fauna occupying a major habitat, e.g. forest or tundra
9. a system of interlocking and interdependent food chains
10. physical rather than biological; not derived from living organisms
13. an organism, especially a soil bacterium, fungus,or invertebrate, that decomposes organic material
15. the natural home or environment of an animal, plant, or other organism
16. a group of living organisms consisting of similar individuals capable of exchanging genes
17. relating to or resulting from living things, especially in their ecological relations
18. a section, group, or type of people or animals living in an area or country

1. the cycle of processes by which circulates between the earths oceans
4. an animal that feeds on flesh
5. the series of processes by which carbon compounds are interconverted in the environment
6. an animal that feeds on plants
8. a hierarchical series of organisms each dependent on the next as a source of food
11. the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms
12. the action of withdrawing formally from membership of a federation or body, especially a political state
14. an animal or person that eats food of both plant and animal origin