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  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-6

  • question_answer
    Opalina lives in the rectum of a frog. It is an example of

    A)  Symbiosis        

    B)  parasitism

    C)  Commensalism

    D)  proto-cooperation

    Correct Answer: C

    Solution :

    [c] Commensalism, in ecology, is a class of relationships between two organisms where one organism benefits from the other without affecting it Opalina lives as an endoparasite or endocommensal in the rectum of frog and toad.


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