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← Nature & AnimalsWhich outcome results when a freshwater teleost's osmoregulation fails?
A)Cells accumulate excess water✓
B)Internal salt concentration stabilizes
C)Active salt secretion increases
D)Gills become impermeable to water
💡 Explanation
Failure in osmoregulation causes cells to accumulate water because water diffuses into the fish’s hypertonic cells via osmosis. Water enters the cells via osmosis rather than active transport because the system cannot maintain the osmotic gradient; therefore cell lysis.
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