Ecosystem Vocabulary

5. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
6. a hierarchical series of organisms each dependent on the next as a source of food.
10. anything that constrains a population's size and slows or stops it from growing
12. any kind of green plant
13. a biological community of interacting organisms and their physical environment.

1. is a subset of individuals of one species that occupies a particular geographic area
2. a group of actually or potentially interacting species living in the same location
3. the number of people, other living organisms, or crops that a region can support without environmental degradation.
4. relating to or resulting from living things
5. model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem.
7. break apart dead organisms into simpler inorganic materials
8. physical rather than biological; not derived from living organisms
9. an individual animal, plant, or single-celled life form.
11. Living things that have to hunt, gather and eat their food