Across
- 2. bays where rivers empty into seas
- 6. landbased
- 7. communities occur in the bottom
- 9. shallow ecosystems submerged in water most of the year
- 11. deepest layers
- 16. narrow sandy island parallel to the coast
- 17. sharp temperature boundary
- 18. top zone
- 19. living
- 21. areas of saturated grounds
- 22. medium zone
- 24. support Marie food web
- 25. best—known marine ecosystems
Down
- 1. path of water through environment (2 words)
- 3. wooded wetlands
- 4. differing conditions from upper to lower layers
- 5. deep ocean ecosystems’ primary nutrient source
- 8. deep zone
- 10. compromise in the water colum
- 12. nonliving
- 13. contribute to distribution of biological productivity
- 14. shallow wetlands flooded with seawater
- 15. rocky shorelines that are flooded at high tide
- 20. affects the amount of oxygen that can be absorbed
- 23. wetlands without trees