The Marine Science Quiz: Exam!

60 Questions | Total Attempts: 1634

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The Marine Science Quiz: Exam! - Quiz

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Questions and Answers
  • 1. 
    The "habitat" includes all of the following except...
    • A. 

      Salinity of the water

    • B. 

      Temperature of the water

    • C. 

      Amount of light

    • D. 

      Tides, waves and currents

    • E. 

      Types of animal and plant species

  • 2. 
    Starting from the least complex to the most, the correct order is...
    • A. 

      Individual, community, population, ecosystem

    • B. 

      Individual, population, community, ecosystem

    • C. 

      Population, individual, community, ecosystem

    • D. 

      Ecosystem, community, population, ecosystem

  • 3. 
    The ocean and the continents were once moving but are now stationary.
    • A. 

      True

    • B. 

      False

  • 4. 
    The Earth is 4.6 billion years old. The continents have been covered by water many, many times in the past as the climate of Earth is very dynamic. (changeable)
    • A. 

      True

    • B. 

      False

  • 5. 
    New ocean crust is created at ________________ and recycled at _____________
    • A. 

      Trenches, abyssal plain

    • B. 

      The continental margin, deep ocean trenches

    • C. 

      The mid-ocean ridge, subduction zones

    • D. 

      Subsea volcanoes, the mid-ocean ridge

    • E. 

      Subduction zones, trenches

  • 6. 
    An island is...
    • A. 

      A small continent

    • B. 

      A landmass unconnected to the ocean floor, adrift on the sea

    • C. 

      A seamount that has emerged above sea level

    • D. 

      A tropical paradise

    • E. 

      A small piece of crust that has been disconnected from the continent

  • 7. 
    Which is false? 
    • A. 

      From the perspective of space, we have one world ocean

    • B. 

      The Eart is 71% covered by oceans at the present time

    • C. 

      Salts and elements in the ocean include sodium chloride, magnesium chloride, calcium chloride and iodine

    • D. 

      The size and distribution of oceans has changed throughout geologic history

    • E. 

      Sea level falls when glaciers melt

  • 8. 
    Population sizes are controlled by all of the following except... 
    • A. 

      Species eating each other

    • B. 

      Environmental pollution

    • C. 

      Seasonal changes and storms

    • D. 

      Diseases

    • E. 

      All of these are population controls. There is no exception

  • 9. 
    Dinoflagellates ( a unicellular, autotroph) require nitrate. If the available supply of nitrate is not enough to sustain the population of dinoflagellates, the nitrate is considered to be
    • A. 

      A limiting resource

    • B. 

      An abiotic factor

    • C. 

      Resource partitioning

    • D. 

      An environmental adaptation

    • E. 

      Nutrient regeneration

  • 10. 
    There is an undersea volcanic chain deep in the oceans.
    • A. 

      True

    • B. 

      False

  • 11. 
    Autotrophs...
    • A. 

      Eat animals

    • B. 

      Eat plants

    • C. 

      Make their own food

  • 12. 
    A hydrothermal vent is too extreme an environment for plants and animals to survive.
    • A. 

      True

    • B. 

      False

  • 13. 
    The sediments taht cover the ocean floor come from...
    • A. 

      The continent as weathered fragments of rock that rivers carry out to sea

    • B. 

      The shells of marine organisms that gather over time on the ocean floor

    • C. 

      Neither a nor b

    • D. 

      Both a and b

  • 14. 
    One species eliminates another by outcompeting it. This is called...
    • A. 

      Resource partitioning

    • B. 

      Competitive exclusion

    • C. 

      Interspecific competition

    • D. 

      Intraspecific competition

    • E. 

      Predatory behavior

  • 15. 
    Sharing resources is called...
    • A. 

      Competitive exclusion

    • B. 

      Interspecific competition

    • C. 

      Symbiosis

    • D. 

      Resource partitioning

    • E. 

      Biodiversity

  • 16. 
    Which is false regarding copepods? 
    • A. 

      They are microscopic

    • B. 

      They are crustaceans

    • C. 

      They have an exoskeleton of calcium carbonate

    • D. 

      They are primary producers

    • E. 

      They are a critical link in the marine food chain

  • 17. 
    Animals that eat other animals are herbivores.
    • A. 

      True

    • B. 

      False

  • 18. 
    Sometimes predators affect species other than their prey by their actions. This is called...
    • A. 

      An ecological niche

    • B. 

      An indirect interaction

    • C. 

      Predation

    • D. 

      A defense mechanism

    • E. 

      A competitive role

  • 19. 
    The carrying capacity is...
    • A. 

      A maximum population that can survive given the available resources in an environment

    • B. 

      The amount of nutrients that are transferred tot he surface during the spring blossom

    • C. 

      The biomass of copepods that are crucial to the marine food web

    • D. 

      The weight of an average member of a species

    • E. 

      The necessary amount of DOM to ensure the survival of decomposers

  • 20. 
    Which is false about Copepods and Jellyfish? 
    • A. 

      Copepods are very small and jellyfish are much larger

    • B. 

      They are both planktonic

    • C. 

      They are on the same level of the trophic pyramid we drew in class

    • D. 

      Two of the above are false

    • E. 

      A-C are all true

  • 21. 
    "Plankton" means...
    • A. 

      Microscopic plant

    • B. 

      Animal at the base of the food chain

    • C. 

      Marine, organic matter

    • D. 

      Primary producer

    • E. 

      Drifter

  • 22. 
    Over time, predators adapt and get better at catching their prey. At the same time, the prey adapts and gets better at escaping the predator through new and improved defense mechanisms. This is called... 
    • A. 

      Coevolution

    • B. 

      Dynamic change

    • C. 

      Role reversal

    • D. 

      Symbiotic behavior

    • E. 

      Competitive exclusion

  • 23. 
    The "Mariana" is...
    • A. 

      A type of shrimp

    • B. 

      An island

    • C. 

      A trench

    • D. 

      A marine research vessel

    • E. 

      A schooling fish

  • 24. 
    The tropics have a much larger plankton bloom than the North Atlantic Ocean.
    • A. 

      True

    • B. 

      False

  • 25. 
    The symbiont is usually the ______ partner and the host is usually the ________partner in the symbiotic relationship.
    • A. 

      Smaller, larger

    • B. 

      Larger, smaller

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