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KVPY Sample Paper KVPY Stream-SX Model Paper-3

  • question_answer
    In the context of organic evolution, the loss of limbs in snakes is explained by the phenomenon of

    A) Use and disuse of organs

    B) Adaptation to living in burrows

    C) Natural selection

    D) Inheritance of acquired characters

    Correct Answer: A

    Solution :

    [a] The loss of limbs in snake is explained by the phenomenon "use and disuse of organs". This concept is given by Lamarck. According to this concept, if an organ is constantly used, it would be better developed whereas disuse of organ result in its degeneration.


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