biology

6. A hierarchical series of organisms each dependent on the next as a source of food.
10. organisms that can interbreed with each other & produce fertile offspring
11. a large region characterized by a specific type of climate and certain types of plants and animal communities.
12. an organism that eats plants and animals.
14. non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
15. a type of symbiotic relationship where all species involved benefit from their interactions.
17. A set of species occupying one level of the ecological food chain.
20. an animal that only eats plants

1. An interaction in wich one organism kills and eats another.
2. Association between two different organisms wherein one benefits at the expense of the other.
3. organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy.
4. any living component that affects the population of another organism, or the environment.
5. a group of organisms, all of the same species that live in a specific area.
7. an environment in which a species normally lives or the location of a living organism.
8. A close relationship between two species that benefits at least one of the species.
9. organic matter that can be used to obtain energy.
13. the role an organism plays in a community
16. part of earth in which life exists including lands, water, air or atmosphere.
18. organisms that make their own food
19. The network of all the inter-related food chains in a biological community