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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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