RAJASTHAN PMT Rajasthan - PMT Solved Paper-2007

  • question_answer
    Two different species cannot live for long duration in the same niche or habitat. This law is

    A)  Aliens law          

    B)         Mendels law

    C)  Causes competitive exclusion principle

    D)  Weismanns theory

    Correct Answer: C

    Solution :

    The principle of competitive exclusion was postulated by Soviet ecologist G.F. Gause. It states that if two species are competiting with one another for the same limited resource, then one of the species will be able to use that resource more efficiently than the other and the former will, therefore, eventually eliminate the latter locally.


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