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EAMCET Medical EAMCET Medical Solved Paper-1996

  • question_answer
    Ambulacral grooves are absent in the living forms of the class:

    A)  Echinodermata               

    B)  Crinoidea

    C)  Asteroidea                        

    D)  Ophiuroidca

    Correct Answer: D

    Solution :

                     Ambulacral grooves arise from the five corners of the peristome. These extend along the middle of the oral surface of each arm upto its tip. In Ophiuroidea these are absent


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