biology unit 8

3. an animal that eats only plants
8. shows the relative amount of various parameters across tropic levels
9. a network of interconnected food chains
11. all individuals of a particular species living within a specific area
12. a comunity of living and nonliving things interaction in an environment
14. the natural home of an organisms
16. a close long term interaction between two different species often beneficial to both
17. an organisms position in the food chain indicating its role in energy flow within an ecosystem
18. the study of how organisms interact with their enviroment

1. a proposition that two species which compete for the same limited resource cannot exist at constant population values
2. an animal which foods on dead material
4. an organism especially a soil bacterium, fungus or invertebate that decomposes organic material
5. an interaction where one organism hunts, kills and consumes another for food
6. an animal that eats both plants and animals
7. an interaction group of various species in a common location
9. shows how energy flows from one organism to another
10. a relationship where one organism benefits at the expense of another
13. an organisms role in its ecosystem
14. an organism that gets its energy by eating other organisms
15. a relationship where both species benefit