GEOL Final Review Guide - Geol 107-Oceanography Douglas...

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Geol. 107-Oceanography   Fall 2007   Douglas STUDY QUESTIONS FOR FINAL EXAM The final exam will cover Lectures Notes 22 to 31 and Chaps.11 to18.  You should  review the study questions  in these chapters.   FINAL EXAM PERIOD, Mon., DEC. 17, 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 75 questions (150 points).  A Review Session will be held in SAL 101 on Fri, Dec. 7 during class. 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 that covered Chap. 11, Tides. 1.  What is a population?  How does it differ from a community?  - a population is a group of organisms of the same species occupying a specific  area - a community is composed of the many populations of organisms that interact at a  particular location 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 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 zone?    Why doesn't it occur at the surface?  - A few meters below the surface.
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- It does not occur at the surface because of the UV rays  5.  What is a nutrient? Give an example. - Nutrients are ions reuired for plant growth and are the fertilizers of the oceans - Example: silicate ion  - Nutrient levels are low in the topics 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 are unicellular, plantlike organisms, that rely on nutrients and the  sun for photosynthesis - Zooplankton are herbivores feeding on phytoplankton, or carnivores feeding on  other zooplankton 8.  What is the difference between a polyp and a medusa?  - Polyps make up coral - Medusa is a jellyfish, larval form of many organisms 9.  What is the source of the phosphate that enters the oceans?  - Nitrogen and phosphorus are cyled into the animal populations as the animals 
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