Evolution (Zoology)


  1. Industrial melanism as observed in peppered moth proves that









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    During the period when the number of coal-burning factories in England was increasing (during the so-called Industrial Revolution) it was noticed that the number of melanic individuals of the species of Peppered Moth (Biston betularia) was becoming more common. Originally rare in the population of normally light-colored moths, the frequency of the melanic form increased in polluted areas until it was over 90%. This change in color has come to be known as "industrial melanism."

    Correct Option: D

    During the period when the number of coal-burning factories in England was increasing (during the so-called Industrial Revolution) it was noticed that the number of melanic individuals of the species of Peppered Moth (Biston betularia) was becoming more common. Originally rare in the population of normally light-colored moths, the frequency of the melanic form increased in polluted areas until it was over 90%. This change in color has come to be known as "industrial melanism."


  1. The finches of Galapagos islands provide an evidence in favour of









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    The finches of Galapagos islands provides an evidence in favour of biogeographical evolution

    Correct Option: C

    The finches of Galapagos islands provides an evidence in favour of biogeographical evolution



  1. What is common between parrot, platypus and kangaroo?









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    Only birds and mammals are homeothermous.

    Correct Option: D

    Only birds and mammals are homeothermous.


  1. What is common to whale, seal and shark?









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    The analogous organs show convergent evolution due to similar adaptation. They do not support organic evolution. Whale, seal and shark shows convergent evolution due to similar habitats.

    Correct Option: B

    The analogous organs show convergent evolution due to similar adaptation. They do not support organic evolution. Whale, seal and shark shows convergent evolution due to similar habitats.



  1. One of the important consequences of geographical isolation is









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    Speciation takes place via reproductive isolation which is the most important consequence of geographical isolation.

    Correct Option: B

    Speciation takes place via reproductive isolation which is the most important consequence of geographical isolation.