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← Nature & AnimalsWhich metabolic effect results when a fish's lamellae damage impairs countercurrent exchange in gills?
A)Reduced ATP supply for muscle contraction✓
B)Increased anaerobic respiration efficiency
C)Enhanced glycogen storage in liver
D)Higher urea production in osmoregulation
💡 Explanation
When lamellae damage impairs countercurrent exchange, efficient oxygen extraction decreases because the blood does not maximize its oxygen saturation across the gill surface, causing less oxygen delivered to tissues. Therefore reduced ATP supply for muscle contraction results, rather than other metabolic changes which require different physiological triggers.
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