RAJASTHAN PMT Rajasthan - PMT Solved Paper-2002

  • question_answer
    In crustaceans, respiration takes place by:

    A)  gills                       

    B)         book lungs

    C)  ctenidia              

    D)         trachea

    Correct Answer: A

    Solution :

    Crustaceae is a class of phylum Arthropoda characterized by following: (a) head with two pairs of antennae, a pair of mandible, and two pair of maxillae (b) respiration by gills (c) containing biramous appendages


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