RAJASTHAN PMT Rajasthan - PMT Solved Paper-1997

  • question_answer
    In Earthworm circular muscles are highly developed in:           

    A)  gizzard                                

    B)  gastric region   

    C)         pharyngeal region         

    D)  oesophagus region

    Correct Answer: A

    Solution :

    The gizzard of Earthworm is hard and muscular organ consists of circular muscle fibres and lined by thick cuticle.


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