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BHU PMT BHU PMT (Screening) Solved Paper-2011

  • question_answer
    Anaerobic photosynthetic bacteria appeared on the earth about

    A)  500 million years ago    

    B)  1500 million years ago

    C)  2500 million years ago

    D)  3500 million years ago

    Correct Answer: D

    Solution :

    Evolution of life-3800-4200 million year ago. Evolution of bacteria-3 500-3800 million years ago. Evolution of eukaryotic algae-1600 million years ago.


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