Marine_BiologyExam4VersionC - Marine Biology Exam 4 Version...

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Marine Biology Exam 4 Version C pg.1 Marine Biology NAME_____________________ C Fall 2009- Exam 3 Please put your last and first name on both this exam and on your scantron. In the upper right hand corner of your scantron put a large C to indicate you took version C of the exam. Test No. is Exam 4 1. Many deep water fish have large mouths because a) so they can get more oxygen, b) because meals are infrequent and they want to be ready to eat anything, c) for protection, d) none of these 2. Deep water fish in comparison to surface dwelling fish are a) much more efficient at using energy b) much less efficient c) about the same at using energy, d) not much is known about this 3. Why do so many mesopelagic fish have eyes that look up a) so they can hunt for prey silhouetted against surface light, b) so they can catch food falling from the surface, c) most of them actually have eyes that look down d) none of the above. 4. Some deep water organisms are red because a) easier to find a mate, b) disruptive coloration, c) there is virtually no red light in deep water so they are impossible to see, d) none of these 5. A scientific theory is a) a well tested explanation of a natural process, b) an hypothesis which can be scientifically tested, c) not supported by facts, d) none of these 6. Life on Earth is thought by scientists to have begun about a) 150,000 yrs ago, b) 10-15 billion yrs ago, c) 5 billion yrs ago, d) 3.5 billion yrs ago. 7. What is evidence that evolution of organisms occurs a) the sedimentary record which shows that just the most primitive organisms are present in oldest layers and more advanced organisms only in recent layers, b) the fact that related organisms have similar anatomy such as bone structure, c) evolution has been shown by the to have occurred recently in finches during droughts in the Galapagos Islands, d) all of the above 8. On deep sea organisms, photophores a)are bacteria that fix nitrogen, b)allow burrowing worms to see in the sediments, c)are the light bulbs used by marine scientists to take photographs of deep sea organisms, d)emit light so some fish can see prey. 9. Approximately what percentage of surface water primary production falls to the bottom into the deep sea? a) 0.1-0.2% b) 6-7% c)25-30%, d) 60-70% 10. What’s the problem with farmed salmon? A) escapees eat juvenile wild salmon, b)escapees breed with wild salmon and weaken the wild genetic stock, c)a+b, d)there’s nothing wrong with farming salmon. 11. When and where do green sea turtles lay their eggs? A)at spring and neap tides in
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This note was uploaded on 11/07/2011 for the course BIO 160 taught by Professor Dr.jonstern during the Fall '08 term at S.F. State.

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Marine_BiologyExam4VersionC - Marine Biology Exam 4 Version...

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