Marine Biology Exam Part IV

40 Questions | Total Attempts: 235

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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

  • 26. 
    Most of the krill fished for commercial purposes is caught in:
    • A. 

      Alaska

    • B. 

      Russia

    • C. 

      Antarctica

    • D. 

      Salt Lake City

  • 27. 
    The "by-catch" is the name given to:
    • A. 

      Junk species that are caught while fishing for more valuable species

    • B. 

      Species caught for industrial purposes

    • C. 

      Species raised in fish farms

  • 28. 
    The type of mariculture that takes place under more or less natural conditions with little manipulation by humans is known as:
    • A. 

      Traditional mariculture

    • B. 

      Same-sex mariculture

    • C. 

      Open mariculture

  • 29. 
    Seeding in mariculture refers to:
    • A. 

      Feeding fry with food raised in land farms

    • B. 

      Enriching natural populations by releasing fish that been farmed for a short time

    • C. 

      Removing diseased fish

  • 30. 
    By the year 2000, farmed fish accounted for approximately what percentage of the total world consumption?
    • A. 

      1%

    • B. 

      10%

    • C. 

      21%

  • 31. 
    Which of the following shows the correct level of organization in order of increasing complexity:
    • A. 

      Atom, molecule, organ, population, ecosystem

    • B. 

      Molecule, organ, atom, ecosystem, population

  • 32. 
    A group of mussels of a particular type  living together on a rocky beach is an example of a(n):
    • A. 

      Organ

    • B. 

      Population

    • C. 

      Ecosystem

  • 33. 
    The ecosystem best encompasses one of the following:
    • A. 

      All living organisms living in one area

    • B. 

      The community or communities and the physical environment

    • C. 

      Populations and communities living in one area

  • 34. 
    Which of the following coreectly links the type of organisms with the way they live?
    • A. 

      Organisms part of the Nekton swim

    • B. 

      Organisms part of the benthos drift

    • C. 

      Vin Deisel with cars tokyo drift

  • 35. 
    An example of a community is:
    • A. 

      One giant kelp individual

    • B. 

      A kelp forest plus all of the physical factors affecting it

    • C. 

      A kelp forest plus all organisms living in it

  • 36. 
    A population may grow until its growth is slowed or stopped as a result of:
    • A. 

      Predation

    • B. 

      Lack of nutrients

    • C. 

      Reduction in light

    • D. 

      All of the above

  • 37. 
    The type of interaction that results when a resource is in short supply and one organism uses the resource at the expense of the other is called
    • A. 

      Population explosion

    • B. 

      Predation

    • C. 

      Resource partitioning

    • D. 

      Competition

  • 38. 
    Competitive exclusion can best be defined as:
    • A. 

      When one species overcompetes and eliminates another

    • B. 

      The division of resources

    • C. 

      When one species shares resources with another

  • 39. 
    The ecological niche of a species is best defined as its:
    • A. 

      Habitat

    • B. 

      Role in the community

    • C. 

      Mode of reproduction

  • 40. 
    Predation can best be defines as:
    • A. 

      A plant takin in nutrients

    • B. 

      An animal eatin another animal

    • C. 

      An animal eatin any other organism

    • D. 

      A plant eatin some KFC