AMU Medical AMU Solved Paper-1995

  • question_answer
    Annelids like the earthworms, Pheretima posthuma, excrete urine that is

    A)  isotonic         

    B)  hypertonic

    C)  hypotonic        

    D)  none of these.

    Correct Answer: A

    Solution :

    : Homoiosmotic forms are those forms which maintain the concentration of their body fluids at the same level in all situations, e.g., all vertebrates and several invertebrates. This is carried out by the presence of organs such as nephridia or the kidneys which can continue to discharge urine in a fairly dilute state.


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