Oceanography Questions
Duxbury Chapter 14

  1. What are jellyfishes with respect to sea water.
    Hypertonic
    Hypotonic
    Isotonic

  2. What are fishes with respect to sea water.
    Hypertonic
    Hypotonic
    Isotonic

  3. What do marine fishes do to deal with their osmotic problem?
    Absorb salt through special cells
    Avoid drinking
    Emit a large volume of dilute urine
    Excrete salt through special cells
    All of the above

  4. Which zone of the ocean refers to the shallow water seafloor?
    Abyssal
    Bathyal
    Epipelagic
    Neritic
    Sublittoral

  5. Which zone of the ocean refers to the surface zone of the deep ocean?
    Abyssal
    Bathyal
    Epipelagic
    Neritic
    Sublittoral

  6. Which zone of the ocean refers to the bottom of the deep ocean?
    Abyssal
    Bathyal
    Epipelagic
    Neritic
    Sublittoral

  7. What tends to be the limiting factor for life in the arctic oceans?
    Nutrients
    Oxygen
    Salt
    Sunlight
    Temperature

  8. What tends to be the limiting factor for life in the tropical oceans?
    Nutrients
    Oxygen
    Salt
    Sunlight
    Temperature

  9. Where in the tropical region does upwelling tend to occur?
    Along the eastern margins of continents such as Brazil.
    Along the western margins of continents such as Peru.
    Around oceanic islands such as Hawaii.
    Mostly in the middle of the ocean basins
    Only around India.

  10. Which ocean communities represent the greatest biomass of the oceans?
    Bathyl
    Benthic
    Hadal
    Nektonic
    Planktonic

  11. Which ocean communities tend to have the highest species diversity?
    Bathyl
    Benthic
    Hadal
    Nektonic
    Planktonic

  12. Which of the following is almost never a problem for very small organisms, such as diatoms?
    Gas exchange
    Mobility
    Nutrients
    Predation
    Sunlight

  13. What is the usual depth for the oxygen minimum in the oceans?
    0 meters (surface)
    100 meters
    1000 meters
    2000 meters
    4000 meters (sea floor)

  14. What is the usual depth for the nutrient minimum in the oceans?
    0 meters (surface)
    100 meters
    1000 meters
    2000 meters
    4000 meters (sea floor)

  15. Match each ocean realm with kind of organisms that live there.
    Ocean realm Organisms
    Benthic
    Nektonic
    Pelagic
    Planktonic
    Bottom-dwellers
    Floaters
    Floaters and swimmers
    Swimmers

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