Which one of the following statements is correct with respect to salt water balance inside the body of living organisms? (1)When water is not available camels do not produce urine but store urea in tissues (2)Salmon fish excretes lot of stored salt throuoh gill membrane when in fresh water (3)Paramecium discharges concentrated sal solution by contractile vacuoles (4)The body fluids of fresh water animals are generally hypotonic to surrounding water
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Answer:
option 1 and 4
Explanation:
in camel if urea is stored than the concentration of the tissue would become hypertonic wrt the surrounding . water won't go out (exosmosis) so it would help preserve water
in freshwater fishes concentration of tissues is kept low i.e hypotonic so as to prevent water loss
from the body
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