MarinBiologyExam4VersionB - Marine Biology Exam 4 Version B...

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Marine Biology Exam 4 Version B pg.1 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 4 1. In the intertidal zone a) most benthic organisms feed on sediments (deposit feeders), b) there are almost no benthic organisms in the intertidal zone, c) most benthic organisms are suspension feeders, d) none of the above 2. What is Aristotle’s Lantern a) the swim bladder of mesopelagic fish, b) A type of photophore used by mesopelagic fish, c) the mouth and feeding apparatus of sea urchins, d) electromechanical location used by sharks 3. For barnacles in the intertidal zone, what sets the lower limit (depthwise) that they can live? a) desiccation, b) temperature, c) abundance of cyanobacteria, d) predation by periwinkle snails 4. What is “Wrack” a) mucous released by hagfish, b) lines of dead macroalgae on beaches, c) organisms that feed on dead whales, d) discarded appendicularian houses 5. How do porpoises keep their testis cool a) swim to deeper water when warm, b) bring cooled blood from their dorsal and caudal fins to testis, c) excrete warm urine, d) open a ventral flap to let cool water in 6. How can you tell a seal from a sea lion? a) Seals have an external ear flap, b) seals can rotate their back fins forward, c) only sea lions can bark, d) Sea lions have an external ear flap 7. What marine mammal has the densest (# hairs/cm2) fur? a) Polar Bear, b) Fur Seal, c) Walrus, d) sea otter 8. What determines the sex of a sea turtle a) sperm from the father, b) salinity, c) daylength, d) temperature of the sand the eggs incubate in 9. Distinguishing features of the deep sea is/are …a.) the lack of primary production through photosynthesis b.) life in the deep sea is much less abundant than in the 10. Most mesopelagic organisms make ___________ where they swim up at night to feed in the food rich surface layers and affect to the depths during the day to escape predators. a.) horizontal migrations b.) vertical migrations c.) transcontinental migrations d.) mesopelgaic migrations 11. Examples of extreme environments where primary production comes from chemosynthesis would be… a.) hydrothermal vents b.) continental shelves c.) 12. Besides food or nutrient availability the most imporant limiting resource for rocky intertidal populations is…a.) space b.) algal abundance c.) tide pool distribution
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Marine Biology Exam 4 Version B pg.2
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MarinBiologyExam4VersionB - Marine Biology Exam 4 Version B...

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