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← Nature & AnimalsWhich risk increases when fish gills experience backpressure?
A)Ineffective countercurrent exchange occurs✓
B)Reduced kidney filtration occurs
C)Elevated metabolic rate consumes more
D)Increased buoyancy inflates swim bladder
💡 Explanation
Ineffective oxygen absorption into capillaries correlates when increased water pressure disrupts the delicate flow, thus impairing countercurrent exchangemechanism. Reduced oxygen diffusion happens because water movement isn't one way, rather than efficient gradient-based transport, therefore causing hypoxia.
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