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← Nature & AnimalsWhich physiological outcome occurs when a marine mammal surfaces after a prolonged cold water dive?
A)Rapid vasodilation in peripheral capillaries✓
B)Increased brown fat thermogenesis rate
C)Immediate transition to aerobic respiration
D)Suppressed shivering thermogenesis response
💡 Explanation
When surfacing after a cold dive, marine mammals experience rapid vasodilation because the blood vessels rapidly expand to redistribute oxygen and dissipate accumulated metabolic heat. Therefore rapid vasodilation occurs, rather than thermogenesis or respiration changes, which require a different process or timing within the dive cycle.
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