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Nature & Animals

Which consequence results when stenohaline fish encounter hyposaline conditions?

A)Gills increase ion uptake rate
B)Osmoregulation failure, cellular swelling
C)Metabolic rate drastically reduces
D)Kidneys increase urine concentration

💡 Explanation

Cellular swelling leads to organ failure because the epithelial cell membranes of freshwater stenohaline fish use active transport to perform osmoregulation to prevent water entry and ion loss. Therefore, cells burst from uninhibited inflow, rather than limited ion movement in hypertonic surroundings.

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