Across
- 3. a community of organisms together with their physical environment organized around a body of water.
- 4. the number and variety of living things in an environment.
- 5. water with about 3.5% salt content; ocean water or seawater.
- 8. large depression below sea level containing salt water.
- 9. to serve as a protective barrier to reduce or absorb the impact of other influences; something that buffers.
- 10. submerged rooted aquatic plants that tolerate salinity.
- 11. study of the relationships living organisms have with each other and with their environment.
Down
- 1. the part of a body of water continuously moving in a certain direction.
- 2. the community of organisms that live on or in the floor of a body of water, including rivers, lakes, estuaries, and oceans.
- 6. a large body of standing water.
- 7. a community of organisms together with their physical environment and the relationships between them.