Marine Biology Exam Part IV

40 Questions | Total Attempts: 507

SettingsSettingsSettings
Please wait...
Marine Biology Exam Part IV

The Struggle's real guys. But we're past halfway!


Questions and Answers
  • 1. 
    The energy source for the bacteria that thrive around deep sea hydrothermal vents is:
    • A. 

      Hydrogen sulfide

    • B. 

      Light

    • C. 

      Heat from the vents

  • 2. 
    Bacteria thriving around the deep sea hydrothermal vents are:
    • A. 

      Symbiotyc

    • B. 

      Chemiosynthetic

    • C. 

      Photsynthetic

    • D. 

      Douchebags

  • 3. 
    The giant deep sea hydrothermal vent tubeworm feeds on:
    • A. 

      Plankton

    • B. 

      Detritus

    • C. 

      None of the above, it has no mouth

  • 4. 
    The major advantage that deep sea benthic animals have over pelagic ones is that their food
    • A. 

      Is easier to digest

    • B. 

      Falls to the bottom and stays in one place

    • C. 

      Gets to be eaten before it gets to pelagic animals

  • 5. 
    A shrimp that occurs in large numbers around deep sea hydrothermal vents does not have eyes. Light sensitive cells on top of the body, however, appear to be used to detect faint light from:
    • A. 

      The surface

    • B. 

      The vents

    • C. 

      Predators

  • 6. 
    Finfish and shellfish provide approximately what percentage of animal protein consumed by humans around the world?
    • A. 

      .5%

    • B. 

      30%

    • C. 

      10%

  • 7. 
    Traditional fisheries are those that:
    • A. 

      Catch shellfish, not finfish

    • B. 

      Do not use boats

    • C. 

      Use relatively simple gear and methods

    • D. 

      Do not sell to the public

  • 8. 
    When did the world population reach 5 billion?
    • A. 

      Not yet, by 2020

    • B. 

      Late 1980s

    • C. 

      Yesterday

    • D. 

      1995

  • 9. 
    One nation where annual catches have not decreased since the 80s:
    • A. 

      US

    • B. 

      China

    • C. 

      Russia

    • D. 

      Middle Earth

  • 10. 
    Most marine foods are taken from
    • A. 

      Coral reefs

    • B. 

      The continental shelf

    • C. 

      Open waters

    • D. 

      Estuaries

  • 11. 
    The largest fish catches are of
    • A. 

      Tuna

    • B. 

      Herrings, sardines, and other clupepoids

    • C. 

      Salmon

  • 12. 
    By definition, demersal catches are those that are harvested from:
    • A. 

      The open water

    • B. 

      The bottom

    • C. 

      Estuaries

  • 13. 
    By definition, pelagic catches are those that are harvested from:
    • A. 

      The open water

    • B. 

      The bottom

    • C. 

      Estuaries

  • 14. 
    Clupepoid fish:
    • A. 

      Feed on small fish

    • B. 

      Feed on plankton

    • C. 

      Are caught exclusively for industrial purposes

  • 15. 
    The major fishing areas of the world are mostly located in waters:
    • A. 

      Where coral reefs are common

    • B. 

      In open waters from coasts

    • C. 

      Where coastal upwelling takes place

  • 16. 
    The major fishing area in the world is the"
    • A. 

      Northwest pacific

    • B. 

      Mediterranean

    • C. 

      Fantasy island

  • 17. 
    Trawls are nets that:
    • A. 

      Surround and trap fish

    • B. 

      Float on the surface

    • C. 

      Dragged along the bottom or through the water column

  • 18. 
    Industrial fisheries employ the catch for all of the following purposes except one:
    • A. 

      Fish meal

    • B. 

      Food

    • C. 

      Poultry food

  • 19. 
    An example of a marine non renewable source:
    • A. 

      Plankton

    • B. 

      Fish

    • C. 

      Oil

  • 20. 
    The maximum sustainable yield is best defined as the:
    • A. 

      Highest catch that can be taken without overfishing

    • B. 

      The annual size of catch that will balance natural death and predation

    • C. 

      Minimum catch that will still allow the population to grow

  • 21. 
    Continued catches above the maximum sustainable yield:
    • A. 

      Can be increased to prevent overfishing

    • B. 

      Will result in overfishing

    • C. 

      Will result in underutilization

  • 22. 
    Fishing effort refers to all of the following except:
    • A. 

      Number of fishing boats

    • B. 

      Number of fishermen

    • C. 

      Number and size of fishing nets

  • 23. 
    One of the following best describes commercial fisheries around the world:
    • A. 

      Most have been affected by overfishing

    • B. 

      About 20% have been affected by overfishing

    • C. 

      All have been affected by overfishing

  • 24. 
    Fisheries management involves all of the following except:
    • A. 

      Determining the optimal catch of a fish population

    • B. 

      Determining when female fish begin releasing eggs

    • C. 

      Restricitng the number of fishing boats

  • 25. 
    The exclusive economic zone (EEZ) of a nation is equal to how many nautical miles?
    • A. 

      1

    • B. 

      4

    • C. 

      10

    • D. 

      200

Back to Top Back to top