Which one of the following statements is correct with respect to salt water balance inside the body of living organisms?

  • A
    When water is not available,camels do not produce urine but store urea in tissues.
  • B
    Salmon fish excretes a lot of stored salt through gill membrane when in fresh water.
  • C
    Paramecium discharges concentrated salt solution by contractile vacuoles.
  • D
    The body fluids of fresh water animals are generally hypotonic to surrounding water.

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