Ecology Exam Review Practice Quiz

25 Questions  I  By Mbromell
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 Ecology Exam Review Practice Quiz
This is a practice exam to help prepare you for the Ecology Exam.

  
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  • 1. 

    Using the food web above, create a food chain. Label the producer, primary consumer, secondary consumer and tertiary consumer.  What level is directly affected by the sun? Explain the result of removing one organism from the food web.

  • 2. 
    Succession where glaciers melt and expose new rock is called
    • A. 

      Primary

    • B. 

      Secondary

    • C. 

      Tertiary


  • 3. 
    In the following food chain, which organism is the secondary consumer?grass ------> rabbit -------> snake ------> hawk
    • A. 

      Grass

    • B. 

      Rabbit

    • C. 

      Snake

    • D. 

      Hawk


  • 4. 
    Which of the following cannot be recycled?
    • A. 

      Nitrogen

    • B. 

      Carbon

    • C. 

      Water

    • D. 

      Energy


  • 5. 
    The term "nitrogen fixation" refers to
    • A. 

      The process that turns nitrates and nitites into nitrogen

    • B. 

      The process where bacteria turns nitrogen into a form that plants can use (ammonia)

    • C. 

      The process where nitrogen gas in the atmosphere is converted to nitrates

    • D. 

      None of the above


  • 6. 
    The release of water vapor from the leaves of trees is called
    • A. 

      Evaporation

    • B. 

      Precipitation

    • C. 

      Condensation

    • D. 

      Transpiration


  • 7. 
    Sea anemones contain a venom that is used to sting and paralyze their prey. The clownfish contains an enzyme in their scales that makes them immune to the venom. This allows them to freely live in the sea anemone without being harmed. This is an example of what type of relationship?
    • A. 

      Predator-prey

    • B. 

      Mutualism

    • C. 

      Commensalism

    • D. 

      Parasitism


  • 8. 
    Which of the following is an abiotic factor in an ecosystem?
    • A. 

      Bird

    • B. 

      Tree

    • C. 

      Rock

    • D. 

      Deer


  • 9. 

    In the above food chain, the snake is an example of a
    • A. 

      Producer

    • B. 

      Primary consumer

    • C. 

      Secondary consumer

    • D. 

      Tertiary consumer


  • 10. 
    Mushrooms and other fungi are responsible for breaking down dead organic matter. In the ecosystem, they are called
    • A. 

      Producers

    • B. 

      Consumers

    • C. 

      Decomposers

    • D. 

      Scavengers


  • 11. 
    The amount of energy that is passed from one organism to the next in a food chain is
    • A. 

      5%

    • B. 

      10%

    • C. 

      15%

    • D. 

      20%


  • 12. 
    On what trophic level would you find organisms that use the sun's energy directly to make their own food?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4


  • 13. 

    Lichen is a symbiotic decomposer that attachers itself to trees and slowly breaks them down. They obtain nutrients from the tree, allowing them to survive and reproduce. What type of relationship is this?
    • A. 

      Predator-prey

    • B. 

      Mutualism

    • C. 

      Parasitism

    • D. 

      Competition


  • 14. 

    In the terrestrial food web above, what would be the effect of a farmer introducing a rat poison in to the ecosystem that is toxic to rats and mice?
    • A. 

      The population of fox would decrease

    • B. 

      The population of grasshoppers would decrease

    • C. 

      The population of hawks would increase

    • D. 

      The population of rabbits would decrease


  • 15. 
    An animal that only eats the flesh of another animal is called a
    • A. 

      Producer

    • B. 

      Herbivore

    • C. 

      Carnivore

    • D. 

      Omnivore


  • 16. 
    Which of the following statements is true about matter and energy?
    • A. 

      Matter is not recycled; energy is recycled

    • B. 

      Matter is recycled; energy is not recycled

    • C. 

      Both matter and energy are recycled

    • D. 

      Neither matter nor energy are recycled


  • 17. 
    The ultimate source of energy for all organisms in life is
    • A. 

      Water

    • B. 

      Oxygen

    • C. 

      Nitrogen

    • D. 

      The sun


  • 18. 
    In the nitrogen cycle, the term "denitrification" refers to
    • A. 

      The conversion of ammonia into nitrogen

    • B. 

      The conversion of nitrogen into ammonia

    • C. 

      The conversion of nitrates into nitrogen gas

    • D. 

      The conversion of nitrogen gas into nitrates


  • 19. 
    Which of the following is considered the main source of excess carbon dioxide in the atmosphere leading to the destruction of the ozone layer?
    • A. 

      Carbon gas released into the atmosphere from factories and cars

    • B. 

      Carbon dioxide being released from animals during the process of cellular respiration

    • C. 

      Carbon gas released into the soil through the process of decomposition

    • D. 

      Carbon dioxide released into the oceans during deposition and decomposition


  • 20. 
    All of the following are ways that we can protect the biosphere except
    • A. 

      Recycling

    • B. 

      Protecting waterways from the dumping of illegal chemicals

    • C. 

      Burning fossil fuels

    • D. 

      Decreasing the process of deforestation


  • 21. 
    When the ground has absorbed the maximum amount of precipitation that it can hold, this occurs
    • A. 

      Seepage

    • B. 

      Evaporation

    • C. 

      Condensation

    • D. 

      Runoff


  • 22. 

    The above image represents what type of relationship?
    • A. 

      Competition

    • B. 

      Mutualism

    • C. 

      Parasitism

    • D. 

      Predator-prey


  • 23. 
    In which cycle would you find denitrification?
    • A. 

      Water

    • B. 

      Carbon

    • C. 

      Nitrogen

    • D. 

      Energy


  • 24. 
    Which of the following organisms is an autotroph?
    • A. 

      Algae

    • B. 

      A bear

    • C. 

      A cheetah

    • D. 

      A fish


  • 25. 
    An area was recently destroyed by a raging wildfire. Which of the following events would allow secondary succession to take place?
    • A. 

      Animals that survive migrate to surrounding areas

    • B. 

      Plant life that survive begin to die out as a result of the lack of available nutrients

    • C. 

      The dead bodies of animals that did not survive the fire return nutrients to the soil

    • D. 

      Omnivores that survive create a decline of both the herbivore and carnivore population


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