AP Ecosystem (54) Quiz

15 Questions | Total Attempts: 108

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AP Ecosystem (54) Quiz

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Questions and Answers
  • 1. 
    Look at the following energy pyramid. If the producers have 7000 kcal of energy, how much energy will be available for the Sheephead ?fish?  
    • A. 

      7 kcal

    • B. 

      70 kcal

    • C. 

      700 kcal

    • D. 

      7000 kcal

  • 2. 
    Which level of this food pyramid represents the largest amount of organisms?
    • A. 

      Tertiary consumers

    • B. 

      Secondary consumers

    • C. 

      Primary consumers

    • D. 

      Producers

  • 3. 
    Which of these best describes the relationship shown by this Kelp Forest Ecosystempyramid?  
    • A. 

      The Giant Sea Bass is a predator of the Sheephead

    • B. 

      The Giant Sea Bass is the prey of the Sheephead

    • C. 

      Sea Urchins are the prey of the Kelp.

    • D. 

      Sheepheads are the predator of the Giant Sea Bass

  • 4. 
    If birds eat insects that feed on corn, which pyramid level would birds occupy?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 5. 
    An energy pyramid is used to show _________.   
    • A. 

      The layout of organisms in any order seen fit

    • B. 

      The amount of energy in the universe

    • C. 

      The amount of energy at each trophic level

    • D. 

      Organized by organism size

  • 6. 
    Net primary productivity represents
    • A. 

      The amount of biomass in excess of that needed to support plant cell respiration.

    • B. 

      The rate at which energy is captured during photosynthesis.

    • C. 

      The amount of carbon dioxide produced by plants.

    • D. 

      Energy production in an area per unit time.

    • E. 

      Plant reproduction per unit area per unit time.

  • 7. 
    Primary source of carbon for photosynthetic organisms is: 
    • A. 

      Bicarbonate in the water.

    • B. 

      Nitrate in the soil.

    • C. 

      Carbon dioxide in the atmosphere and water.

    • D. 

      Dissolved phosphate in water.

    • E. 

      Carbonic acid in rain.

  • 8. 
    Which of the following terms is synonymous with photosynthetic organisms?
    • A. 

      Primary consumer and autotroph

    • B. 

      Primary producer and autotroph

    • C. 

      Primary producer and heterotroph

    • D. 

      Primary consumer and heterotroph

    • E. 

      Primary consumer and producer

  • 9. 
    Which of the following statements reflects a key concept about ecosystems?
    • A. 

      Matter moves linearly through different systems, both abiotic and biotic, within an ecosystem

    • B. 

      There is a one-way flow of energy through the food webs of ecosystems

    • C. 

      Conservation should focus on the success and survival of individual species

    • D. 

      The abiotic environment does not influence the distribution and survival of particular organisms.

  • 10. 
     What key factor limits the number of trophic levels in an ecosystem?
    • A. 

      Maximum solar radiation

    • B. 

      Energy loss

    • C. 

      Herbivore size

    • D. 

      Predator size

    • E. 

      Climate

  • 11. 
    Fixation of carbon is accomplished by:
    • A. 

      Photosynthetic organisms.

    • B. 

      Primary consumers

    • C. 

      Decomposers.

    • D. 

      Bacterial decomposers.

    • E. 

      Burning of organic matter.

  • 12. 
    The major atmospheric components of Earth, from the lowest concentration to the greatest concentration, are:
    • A. 

      Nitrogen, carbon dioxide, and oxygen.

    • B. 

      Nitrogen, oxygen, and carbon dioxide.

    • C. 

      Carbon dioxide, nitrogen, and oxygen.

    • D. 

      Carbon dioxide, oxygen, and nitrogen.

    • E. 

      Oxygen, nitrogen, and carbon dioxide.

  • 13. 
    The causes of increased carbon dioxide being released into the atmosphere include:
    • A. 

      The burning of fossil fuels such as coal and gasoline.

    • B. 

      The burning of wood.

    • C. 

      Cattle production.

    • D. 

      Heating with natural gas.

    • E. 

      All of these.

  • 14. 
    Fixation of nitrogren is usually accomplished by 
    • A. 

      Corn

    • B. 

      Algae

    • C. 

      Bacteria

    • D. 

      Lichens

    • E. 

      Photosynthetic producers

  • 15. 
    The total amount of organic food produced in an ecosystem is measured by 
    • A. 

      Primary productivity

    • B. 

      Gross primary productivity

    • C. 

      Net primary productivity

    • D. 

      Food web

    • E. 

      Nitrogen cycle

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