Oceanography final review - Geol 107-Oceanography Douglas...

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Geol. 107-Oceanography   Fall 2005   Douglas STUDY QUESTIONS FOR FINAL EXAM The final exam will cover Lectures Notes 14 to 30 and Chaps. 5 to12.  You should  review the  study questions  in these chapters.  In lecture, not much attention was given to the  environmental issues reviewed in Chap. 9 but you should read this section. FINAL EXAM PERIOD, Mon., DEC. 12, 8-11 am, SAL 101.  The  exam will begin at 8:30.  The exam will be similar to the  midterms with multiple choice and some true/false questions.  There will be 100-125 questions.  A Review Session will be held in SAL 101 on Tues, Dec. 6, 9-11 am. The following questions are directed at the material covered since the  previous midterm .  You should also review the study questions contained  in the Review for midterm 2. 1.  What is a population?  How does it differ from a community?  A population is a collection of all the individuals of a single species. A  community is an assemblage of species that live in the same environment that  are dynamic in space and time. 2.   What is a trophic pyramid?  How does it differ from a food web/chain?  Made up of trophic levels that represent links in a food chain. Primary producers, then herbivorous zooplankton, carnivores, then  predator The first level requires nutrients and energy. Nutrients are recycled at  each level; energy is lost at each level Food chains and webs represent the pathways followed by nutrients and food  energy Trophic pyramid is a more simplified version 3.  What conditions are necessary for the rapid growth of phytoplankton? A good amount of sunlight and nutrients 4.  Where does the maximum level of primary productivity occur in the photic 
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zone? Why doesn't it occur at the surface? A few meters below the surface, not at surface because of the UV rays at  the surface 5.  What is a nutrient? Give an example. Nutrients are ions required for plant growth and are the fertilizers of the  oceans. Ex. Silicate ion Nutrient levels are low in the tropics, except for the equator 6.  What are the factors that control the penetration of light into the ocean? Depends on the latitude and sunlight 7.  What is the difference between phytoplankton and zooplankton?  Phytoplankton: unicellular, plantlike organisms Zooplankton are either herbivores, feeding on phytoplankton, or  carnivores feeding on other zooplankton.
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