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Discussion :: Environmental Science

  1. Respiratory roots are known as

  2. A.

     velamen

    B.

     pneumatophores

    C.

     hydathodes

    D.

     prop roots

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    Answer : Option B

    Explanation :

    Respiratory or knee roots (pneumatophores) are characteristic of many species; they project above the mud and have small openings (lenticels) through which air enters, passing through the soft spongy tissue to the roots beneath the mud.


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