Marine Biology

3. often bordered by grassy areas, called wetlands, areas of low wave disturbances
5. a relatively low biomass species that is a major factor in determining community structure within an ecosystem
8. asexual reproduction in corals
9. the cartilage fish (sharks, rays, and skates)
11. when the coral polyp expels the zooxanthellae
12. when one tectonic plate moves under another and sinks into the mantle
14. when the plates are moving away from each other
15. a collection of marine debris in the North Pacific Ocean.
16. blue-green algae
17. was a supercontinent that existed during the late Paleozoic and early Mesozoic eras.
19. a series of water waves generated by earthquakes or slides
20. Shrubs and trees that live along the seashore in tropical and subtropical regions
21. the jawless fish (lampreys and hagfish)

1. where rivers meet the sea; semi-enclosed areas where fresh water & seawater mix and meet
2. Marine fishes that migrate to fresh water to breed (ex. salmon)
4. production of light by living organisms
6. largest toothed whale
7. the organism that has the most biomass in a system
10. sexual reproduction in corals
13. areas of the ocean that cannot support life due to their lack of oxygen
18. the name of the deep-sea submersible that was deployed almost daily on eight-hour dives?