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← Nature & AnimalsAfter a sudden environmental temperature drop, which mechanism directly raises a mammal's core temperature?
A)Skeletal muscle shivering thermogenesis✓
B)Cutaneous vasodilation and convection
C)Increased evaporative cooling by sweating
D)Reduced metabolic activity during torpor
💡 Explanation
Shivering thermogenesis generates heat through rapid muscle contractions because cellular respiration increases, therefore elevating body temperature, rather than lowering it through vasodilation or torpor which lose or conserve body heat.
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