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← Nature & AnimalsWhich mechanism maintains cellular function when saltwater fish osmoregulate?
A)Active chloride cell ion transport✓
B)Increased surface area capillary density
C)Enhanced urea retention in kidneys
D)Excretion of dilute, copious urine
💡 Explanation
Active chloride cell ion transport maintains cell function because cells actively secrete chloride ions to lower internal salt concentrations and prevent dehydration; therefore cellular function is sustained rather than impaired because they don't retain urea.
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