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    Question

    In freshwater, the body fluid of fishes is:- 

    A More concentrated (Hypertonic) Correct Answer Incorrect Answer
    B Less concentrated (Hypotonic) Correct Answer Incorrect Answer
    C Both more and less concentrated (Hypertonic and hypotonic) Correct Answer Incorrect Answer
    D Isotonic to the surrounding water Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    The body fluids of fish that live in fresh water have a higher concentration of dissolved substances than the water in which they swim. In other words the body fluids of fresh water fish are hypertonic to the water.

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