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NEET Biology The Living World / जीव जगत Question Bank Organic Evolution and Speciation

  • question_answer
    First vertebrates were appeared in a period of palaeozoic era, called

    A)            Silurian                                     

    B)            Ordovician

    C)            Devonian                                 

    D)            Mississipian

    Correct Answer: B

    Solution :

     


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