Many freshwater fishes cannot live in seawate | vedclass

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(B) The correct answer is $B$ (Osmotic problems).Some organisms are tolerant to a wide range of salinities and are called euryhaline,for example,salmo

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Osmotic problems

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(B) The correct answer is $B$ (Osmotic problems).Some organisms are tolerant to a wide range of salinities and are called euryhaline,for example,salmon fish. Others are restricted to a narrow range of salinities and are called stenohaline,such as most freshwater and marine fishes.Many freshwater animals cannot live for long in seawater and vice versa because of the osmotic problems they would face. When placed in a different salinity environment,their body cells either lose water (plasmolysis) or gain excessive water,disrupting their internal homeostasis.

Many freshwater fishes cannot live in seawater and vice versa because of:

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