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← Nature & AnimalsWhich outcome occurs when large mammals experience prolonged cold water exposure?
A)Skeletal muscle shivering thermogenesis increases sharply✓
B)Cutaneous vasoconstriction rapidly decreases core temperature
C)Brown fat metabolism generates heat centrally
D)Metabolic suppression initiates torpor immediately
💡 Explanation
Skeletal muscle shivering thermogenesis increases rapidly because rapid muscle contractions generate heat. Shivering is a reflex to elevate body temperature by converting energy into heat, rather than relying on conduction through vasoconstriction; therefore, maintaining core temperature is prioritized.
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