AMU Medical AMU Solved Paper-2013

  • question_answer
    Which of the following animals lack alimentary canals (complete digestive system)?

    A)  Earthworms                     

    B)  Jellyfish

    C)  Insects                

    D)  Fishes

    Correct Answer: B

    Solution :

                                     Jelly fish (Aurelia) is coelenterates. It belongs to class?Scyphozoa of phylum-Coelenterata or Cnidaria. The organism (jelly fish) lack alimentary canals.  Gastro- vascular cavity is without stomoedeum but endodermal gastric tentacles are present.


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