Ecology

6. interacting group of various species in a common location
7. An organism capable of synthesizing its own food
8. a system of interlocking and interdependent food chains
10. the preying of one animal on others
12. anything that constrains a population's size and slows or stops it from growing
18. an animal that feeds on carrion, dead plant material, or refuses
19. role an organism plays in its community
21. processes by which carbon compounds are interconverted in the environment,

1. beneficial to both organisms involved
2. non living things
3. process of water movement through a plant
4. physical features of an organism
5. things organisms do to survive
9. basic structure of interaction in all biological communities
11. biogeochemical cycle
13. natural process that warms the Earth's surface
14. the number of steps, it is from the start of the chain
15. interaction between two different organisms living in close physical association
16. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
17. living things
20. home or environment of an animal, plant, or other organism