MarineBiologyExam3VersionB - 1 Marine Biology NAME_ B Fall...

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Marine Biology NAME_____________________ B 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 B to indicate you took version B of the exam. Test No. is Exam 3 1. Cephalopods have _____________ and _____________ that are used to change shading and coloring of the skin the help them hide from predators. a. Chromatophores and Kodachromes b. Chromatophotres and Photophores c. Chromatin and Photophores d. Chitin and Photophores 2. _____of large fish like tuna and swordfish are gone. a. 50% b. 25% c. 60% d. 90% 3. An example of a anadromous fish would be a. An eel b. A coho salmon c. A great white shark d. A hagfish 4. Tuna are able to keep their body temperature from about 5° to almost 12° C above the water temperature by using a. Counter current circulatory system of paired ingoing and outgoing blood vessels b. Conjoined current circulatory system where warm and cold blood are mixed continually throughout the body c. Tuna do not regulate their body temperature. d. None of the above 5. Nekton are organisms that are a. Capable of swimming against a current b. Incapable of swimming against a current c. Fish that only migrate from fresh to salt water d. None of the above 6. An example of Nekton is a. a tunicate b. a hagfish c. a cocolithophore d. an anemone 1
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The most primitive animals in the sea are a. starfish b. crustacean c. jellyfish d. sponges 8. Suspension Feeders a. feed on particulate organic matter that settles to the bottom b. get most of their energy from symbionts c. feed on particulate organic matter suspended in the water d. are autotrophs 9. Cnidarians a. include sea anemonies, jellyfish, and corals b. are radially symmetrical c. have a centrally located mouth surrounded by tentacles d. all of the above 10. In the marine benthos a. usually there are fewer animals/ area as you go deeper b. usually there are more animals/ area as you go deeper c. animal concentration is relatively uniform in shallow and very deep water d. none of these 11. Some deep ocean sediments are red clay. This sedimentary material originated a. from Foraminifera b. from Pteropods c. from diatoms d. from dust blowing off deserts 12. What happens to the biomass of benthos the deeper you go in the ocean? a. there is more and more as you go deeper b. there is less and less as you go deeper c. nothing, it stays the same d. none of these 13. An example of sex reversal in fishes where they are born male but transform into females is known as a. Urogenital reversal b. The leptocephalus cycle c. Protandry d. Homing behavior 14. Catadromous fish a. Breed at sea and migrate into rivers to grow and mature b. Breed and mature in the sea c. Breed and mature in rivers d. Are fish that can attain full maturity, but are unable to breed 15. An example of an apex predator is
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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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MarineBiologyExam3VersionB - 1 Marine Biology NAME_ B Fall...

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