Chapter 12 Vocabulary

8. a non-living (physical or chemical) component of the environment
9. organisms that live on the bottom
11. population growth that is constrained by biotic or abiotic factors such as competition or nutrients
12. organisms that live in the water column, away from the bottom, including the plankton and nekton
13. the bottom below 6,000 m
14. the bottom from a depth of approximately 4,000 m to 6,000 m
16. the sharing of resources by specialization
17. each of the steps in a food chain
18. the pelagic environment above the continental shelf

1. a living component of an environment
2. the pelagic environment beyond the shelf break
3. unrestricted population growth where the population grows at a faster rate with each successive generation
4. an essential factor whose short supply limits the growth of a population
5. the bottom between the shelf break and a depth of approximately 4,000 m
6. the maximum population size that can be sustained by the available resources in a given environment
7. the study of the interactions between organisms and their environment
10. the elimination of one species by another as a result of competition
15. the total mass of living organisms