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AIIMS AIIMS Solved Paper-2014

  • question_answer
    Assertion Removel of keystone species cause serious disruption in the functioning of the community. Reason Keystone species are low in abundance (or biomass) than the dominant species. These questions consist two statement each printed as Assertion and Reason. While answering these question, you are required to choose any one of the following four options.

    A) Both Assertion, and Reason are true and Reason is the correct explanation of Assertion

    B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion

    C) Assertion is true, but Reason is false

    D) Both Assertion and Reason are false

    Correct Answer: B

    Solution :

                    Keystone species play vital role in controlling the relative abundance of other species. Their removal causes serious disruption in the functioning of community. These are species which have greater influence on community characteristics relative to their low abundance or biomass.


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