Uttarakhand PMT Uttarakhand PMT Solved Paper-2009

  • question_answer
    Which shows polymorphism?

    A)  Physalia       

    B)  Trypanosoma

    C)  Termite        

    D)  All of these

    Correct Answer: A

    Solution :

    The colony of Physalia is a massive type colony containing many zooids. Among the zooids. a large cup shaped float is seen, which is bright blue in colour and remains above the sea water normally. On the undersurface of float mar gastrozooids, goenozooids and dactylozooi are present. The colony, thus, shows a very high degree of polymorphism (ie, existence x two distinctly different forms in a species).


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