Marine Biology Exam Part V

40 Questions | Total Attempts: 367

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Marine Biology Exam Part V

Almost there! We're at Rocky V! you gon' let Tommy take you down!? NO!


Questions and Answers
  • 1. 
    One of these is an example of coevolution:
    • A. 

      A seaweed evolving better ways to catch sunlight

    • B. 

      A seaweed evolving a mechanism to take in a particular nutrient

    • C. 

      A limpet evolving a behavior that allows it to escape from a seastar predator

  • 2. 
    The relationship between zooxanthallae and reef corals is an example of:
    • A. 

      Mutualism

    • B. 

      Predation

    • C. 

      True love

  • 3. 
    Cleaning symbiosis is an example of symbiosis because the partners involved in the association:
    • A. 

      Are not harmed

    • B. 

      Both have coevolved into a close association

    • C. 

      One is harmed while the other is not

  • 4. 
    The following is a synonym of autotrophs:
    • A. 

      Consumer

    • B. 

      Primary producer

    • C. 

      Heterotroph

  • 5. 
    The difference between food webs and food chains is that food webs:
    • A. 

      Consist of only one trophic level

    • B. 

      Include primary producers as well as consumers

    • C. 

      Are more complex

  • 6. 
    Consumers that feed directly on the producers are called:
    • A. 

      Top predators

    • B. 

      Primary consumers

    • C. 

      Carnivores

  • 7. 
    An example of a tertiary consumer:
    • A. 

      A seaweed

    • B. 

      A grazer

    • C. 

      A carnivore

    • D. 

      Your mother

  • 8. 
    On average, what percentage of energy in a particular trophic level is passed on to the next trophic level?
    • A. 

      100%

    • B. 

      10%

    • C. 

      40%

  • 9. 
    The detritus in the water includes:
    • A. 

      Dead organic matter

    • B. 

      Waste products dissolved in water

    • C. 

      All of the plankton

  • 10. 
    A fundamental role of decomposers:
    • A. 

      Releasing nutrients for autotrophs

    • B. 

      Causing diseases

    • C. 

      Providing food for carnivors

  • 11. 
    Primary production is measured using the following units:
    • A. 

      Gm Carbon/depth

    • B. 

      Gm carbon/area/time

    • C. 

      Gm carbon/time

    • D. 

      Gm carbon/hammer/time

  • 12. 
    In the dark light bottle experiment, one of the following is measured in the dark bottle:
    • A. 

      Photosynthesis

    • B. 

      Respiration

    • C. 

      Decompostion

  • 13. 
    The amount of clorophyll in the water is a direct estimate of:
    • A. 

      Primary production

    • B. 

      Respiration

    • C. 

      Oxygen utilization

  • 14. 
    In the carbon cycle, plants play a fundamental role by:
    • A. 

      Increasing the amount of dissolved carbon dioxide of respiration and decreasing it as a result of photosynthesis

    • B. 

      Increasing the amount of a dissolved arbon dioxide as a result of decomposition

    • C. 

      Too long to write.

    • D. 

      Burning out.

  • 15. 
    Nitrogen fixation is performed at sea by:
    • A. 

      Seaweeds

    • B. 

      Cyanobacteria

    • C. 

      Phytoplankton

  • 16. 
    Sessile organisms are part of the:
    • A. 

      Benthos

    • B. 

      Nekton

    • C. 

      Plankton

  • 17. 
    The subtidal zone is the area:
    • A. 

      Between low and high tide

    • B. 

      Between the intertidal zone and the continental shelf

    • C. 

      Above the higest reefs

  • 18. 
    Niche overlap eventually leads to :
    • A. 

      Mutualism

    • B. 

      Commensalism

    • C. 

      Competition

    • D. 

      Communism

  • 19. 
    The second level (right above the base) in the marine food web with the energy base of dissolved inorganic compounds consists of:
    • A. 

      Green plants

    • B. 

      Herbivorous fish

    • C. 

      Sponges

  • 20. 
    The second level (right above the base) in the marine food web with the energy base of inorganic compounds consists of:
    • A. 

      Green plants

    • B. 

      Herbivorous fish

    • C. 

      Seriously. same question

    • D. 

      Don't mess up twice.

  • 21. 
    The loss of estuaries and mangrove forests is particularly serious since these ecosystems
    • A. 

      Provide nesting for birds

    • B. 

      Are among the most productive of all marine ecosystems

    • C. 

      Provide habitats to many species

    • D. 

      All of the above

  • 22. 
    Coral reefs are being directly affected by the destruction of:
    • A. 

      Tropical rainforests

    • B. 

      Estuaries

    • C. 

      Sandy beaches

  • 23. 
    One important reason behind the destruction of mangrove forests in recent years is:
    • A. 

      Shrimp farming

    • B. 

      Bird hunting

    • C. 

      Whale wars

    • D. 

      Whale wars

  • 24. 
    Pollution is best described as
    • A. 

      Adding substances or energy that harm the environment

    • B. 

      Changing the population of the species

    • C. 

      The decrease in quality of the environment from natural events

  • 25. 
    Eurotophication is a type of pollution caused by:
    • A. 

      Pesticides

    • B. 

      Oil runoff

    • C. 

      Fertilizers

  • 26. 
    People sometimes contract hepatitis from eating raw shellfish because the shellfish
    • A. 

      Filter the virus from sewage-contaminated water

    • B. 

      Is the normal carrier of the hepatitis virus

    • C. 

      Are most likely spoiled

  • 27. 
    Sludge is best defined as:
    • A. 

      Raw sewage

    • B. 

      Semi-liquid material that results from sewage treatment

    • C. 

      My cooking

    • D. 

      Decay bacteria in fish

  • 28. 
    Accumulation of sludge on the bottom of the ocean is responsible for:
    • A. 

      Anoxic, or oxygen lacking, conditions

    • B. 

      Drastic changes in the salinity

    • C. 

      Drastic changes in the temperature

  • 29. 
    The two most important sources of oil pollution in the marine environment are:
    • A. 

      Tanker and blowout accidents

    • B. 

      Natural seepage and urban runoff

    • C. 

      Tar balls and urban wastes

  • 30. 
    A substance that is biodegradable:
    • A. 

      Evaporates slowly

    • B. 

      Can be broken down by bacteria

    • C. 

      Sinks to the bottom

  • 31. 
    After oil spills, what type of marine animals are most likely to die of exposure?
    • A. 

      Sea urchins

    • B. 

      Sea birds

    • C. 

      Migrating fish like salmon

  • 32. 
    The most harmful oil spills in terms of damage to the environment are generally considered to be:
    • A. 

      Blowout of offshore rigs

    • B. 

      Sinking or collision of tankers

    • C. 

      Natural seepage

    • D. 

      Kevin Costner in Waterworld

  • 33. 
    Chlorinated hydrocarbons are found most commonly in:
    • A. 

      Fertilizers

    • B. 

      Pesticides

    • C. 

      Oil

  • 34. 
    A persistent chemical is one that is:
    • A. 

      Toxic

    • B. 

      Non biodegradable

    • C. 

      Insoluble in water

  • 35. 
    Persistent chemicals are particularly harmful to the environment because they:
    • A. 

      Are toxic to plants and other autotrophs

    • B. 

      Are not soluble in water

    • C. 

      Accumulate in organisms that are higher in the food chain

  • 36. 
    A type of seabird that was particularly affected by pesticides such as DDT:
    • A. 

      Pelicans

    • B. 

      Cormorants

    • C. 

      Common gulls

  • 37. 
    Which of the following organisms are expected to show the highest concentration of DTT and other chlorinated hydrocarbons in tissues?
    • A. 

      Carnivorous fish

    • B. 

      Sea lions

    • C. 

      Phytoplankton

  • 38. 
    Chlorinated hydrocarbons reach the marine environment by way of:
    • A. 

      Fertilizers used in farms along the shore

    • B. 

      River runoff

    • C. 

      Thermal pollution getting into the clouds

  • 39. 
    PCB's are characterized by being:
    • A. 

      Persistent

    • B. 

      Radioactive

    • C. 

      Eutrophication

  • 40. 
    One of the following has been implicated in abnormal sexual behavior in seabirds:
    • A. 

      Sewage pollution

    • B. 

      Chlorinated hydrocarbons

    • C. 

      Thermal pollution