Biosphere

2. Chain a hierarchical series of organisms each dependent on the next as a source of food
4. a major ecological community type
5. animals that only eat green foods
9. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
10. an organism that decomposes organic material
11. a substance that provides nourishment essential for growth and the maintenance of life
12. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
13. An autotrophic organism that serves as a source of food for other organisms in a food chain
19. a process where green plants use sunlight to synthesize foods with carbon dioxide and water. Oxygen being a byproduct
20. Web a system of interlocking and interdependent food chains
21. Bloom a delicate powdery surface deposit on certain fresh fruits, leaves, or stems

1. Level each of several hierarchical levels in an ecosystem
3. a biological community of interacting organisms and their physical environment
4. the total mass of organisms in a given area or volume
6. organisms that can form nutritional organic substances from simple inorganic substances
7. synthesis of carbohydrate from carbon dioxide and water; limited to certain bacteria and fungi
8. an organism deriving its nutritional requirements from complex organic substances
14. animals that eat both meat and green foods
15. animals that only eat meat
16. groups of individuals belonging to the same species that live in the same region at the same time
17. interacting group of various species in a common location
18. the region that is occupied by living organisms