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Ecosystem Test ...

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  • Question 1
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    Which of the following differentiates gross primary production and net primary production?

  • Question 2
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    Biotic resources are ______.

  • Question 3
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    Choose the correct statement about ecological succession.

  • Question 4
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    Read the passage and answer the following question.

    A population study of plants was done in an abandoned field. Each year for $$3$$ years the vegetation was sampled. The chart indicates the results of the body.
    YearNumber of Plants per Acre
    SandspurRagweedTimothy GrassGoldenrodWire Grass
    $$1$$$$3,800$$$$4,900$$$$600$$$$0$$$$412$$
    $$2$$$$1,500$$$$2,209$$$$1,185$$$$75$$$$796$$
    $$3$$$$752$$$$180$$$$2,234$$$$790$$$$1,643$$$

    Given data describes that

  • Question 5
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    Due to the clearance of many forest areas in the Eastern United States, the cultivation got abondoned but eventually returned back to forests. Such a process of revival of an ecosystem is known as

  • Question 6
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    The main factor determining the distribution and abundance of eukaryotic extremophiles is

  • Question 7
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    How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?

  • Question 8
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    The least inclusive level of ecological organization that includes interactions among living and non-living factors is 

  • Question 9
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    All of the following statements are true of primary succession except

  • Question 10
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    The rate of formation of new organic matter by deer in a forest ecosystem is called

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