Question

Hypothesize how amphibians' relatively low body fluid concentration of approximately 250 mOsm, which is normally advantageous, could actually compound the problems amphibians encounter if salinity levels increased to 1000 mOsm.

Answer 1

Ans. - amphibian cells in a hypertonic solution (i.e., one in which the concentration of solutes is higher than it is in the cytosol) causes, them to shrink as water leaves them by osmotic flow.

Even in an isotonic environment, all animal cells face a problem in maintaining their cell volume.

Frogs generally cannot handle living in saltwater environments. The salinity in frogs' blood and cells isn't as densely packed as it is in saltwater. If a frog lived in saltwater, the water would quickly spread over them. This, in turn, would bring upon their dehydration.

They will try to eat more food and drink so the concentration in their body can increase.

They will try to cover their body surface so that they can reduce water movement towards outside.

They will try to reabsorp more and more amount of water.

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