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← Nature & AnimalsWhich effect occurs in marine fish within estuaries as freshwater inflow increases?
A)Increased chloride cell activity
B)Reduced water intake necessity
C)Decreased active salt secretion✓
D)Enhanced nitrogenous waste excretion
💡 Explanation
Decreased active salt secretion by chloride cells occurs because freshwater inflow reduces salinity; the osmoregulation mechanism detects a less hypertonic environment, therefore less active transport is needed rather than cell activity continuing at the initial rate.
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