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NEET AIPMT SOLVED PAPER SCREENING 2009

  • question_answer
    Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

    A) Coelenterates (cnidarians)

    B) Aschelminthes (roundworms)

    C) Ctenophores

    D)        Sponges

    Correct Answer: B

    Solution :

    Aschelminthes are bilateral symmetrical and triploblastic animals, eg, Ascaris. Coelenterates are radially symmetrical and diploblastic animals, eg, Obelia. Ctenophores are biradial symmetrical and diploblastic animals, eg, Ctenoplana,, Sponges   are   asymetrical   or   radially symmetrical and diploblastic animals, eg, Sycon.


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