MNS320 Quiz5 key

MNS320 Quiz5 key - other things throughout the chapter 4(2...

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MNS320 Marine Ecology Name:____________________________________ Quiz #5, 15 points total UT EID:__________________________________ 1. (3 pts) What forms the base of the food chain in the following deep sea environments? Hydrothermal vents? Chemosynthetic bacteria Cold seeps? Chemosynthetic bacteria Abyssal plains (away from vents or seeps)? POM, bacteria, detritus 2. (2 pt) What inorganic compound(s) drives primary production in: hydrothermal communities? Hydrogen sulfide cold seep communities ? methane 3. (4 pt.) Organisms in the dimly-lit mesopelagic zone exhibit a variety of anatomical differences from their bathypelagic counterparts, presumably due to the different environmental conditions in these two regions. Please list 4 examples of differences in anatomy between mesopelagic and bathypelagic organisms. There is a table in the book and notes about fish, but inverts differ in their color, plus various
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Unformatted text preview: other things throughout the chapter 4. (2 pt) List two roles of bioluminescence in the deep sea. Camouflage, mating, species recognition, attracting prey, defense 5. (1 pt) _____________ luciferase____________________________is the enzyme responsible for producing light in bioluminescent animals. 6. (1 pt) TRUE/FALSE In general, the size of organisms decreases with depth. 7. (1 pt) TRUE/ FALSE In the deep sea, the number of animals forming CaCO 3 shells increases with depth. 8. (1 pt) TRUE/ FALSE Deep sea communities are very diverse and tend to be dominated by a few, very abundant species. Bonus question (1 pt): On January 23, 1960, Jacques Piccard and Lt. Donald Walsh descended to the Challenger Deep, in the Mariana Trench, in what vehicle?...
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MNS320 Quiz5 key - other things throughout the chapter 4(2...

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