1. Describe the process of coral bleaching.
2. Give two possible causes of coral bleaching.
3. List the two major aquatic life zones (biome).
4. Where are most of the world's reefs? (See fig. 7-2)
5. Which trophic level in the aquatic food web is occupied by phytoplankton, and which level is occupied by zooplankton?
6. Give an example of a nektonic marine organism and a marine benthic organism in Hawaiian waters.
7. Explain why it is difficult to count and manage aquatic organisms.
8. List three nutrients necessary for photosynthesis.
9. Define euphotic zone. (Also see p. G6)
10. Explain why the concentration of O2 generally decreases with increasing depth, while the concentration of CO2 generally increases.
11. Explain why the waters around Hawaii, the open ocean, are clear, whereas the many lakes, streams, and continental coastal waters are green and murky because of high phytoplankton concentrations.
12. Contrast the percentages of marine species in the ocean's coastal zone compared with open see.
13. List some of the reasons why humans should not continue to destroy mangrove forest swamps.
14. Define eutrophication (See p. G 7) and explain the effects of eutrophication on bodies of water such as lakes. (Also see fig. 17-7)
15. List the benefits of inland wetlands.
16. List the four major impacts on wetlands by human activities.
17. Give the percentage of the wetlands in the US that has been destroyed since the 1600s?
18. Is the damage to aquatic habitats irreversible?