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NEET Sample Paper NEET Sample Test Paper-74

  • question_answer
    Epiphytes like vanda develop special layer of absorptive tissue velamen consisting of 4 or 5 layers of long polygonal cells. Velamen takes part in

    A)  absorption of water from soil                     

    B)  absorption of moisture from air

    C)  exchange of gases                              

    D)  transpiration

    Correct Answer: B

    Solution :

    These roots hang in the air and possess velamen for absorbing moisture directly from atmosphere.


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