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← Nature & AnimalsWhich outcome occurs when a marine mammal moves from tropical water into arctic water and cannot maintain constant body temperature?
A)Peripheral vasoconstriction resists heat loss.
B)Countercurrent exchange conserves core heat.
C)Shivering thermogenesis generates rapid heat.
D)Extreme hypothermia induces enzymatic failure.✓
💡 Explanation
Enzymatic failure from hypothermia results because suppressed mammalian thermoregulation cannot adequately counteract cold stress. Vasodilation causes rapid internal convection, therefore the organs begin to fail rather than induce shivering thermogenesis or efficiently redistribute blood via countercurrent exchange because of the extreme drop.
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