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← Nature & AnimalsWhich mechanism causes increased heat loss when marine mammals ascend rapidly?
A)Peripheral vasodilation accelerates conduction✓
B)Countercurrent exchange retains heat
C)Pilomotor response conserves core heat
D)Behavioral thermoregulation reduces convection
💡 Explanation
Increased heat loss occurs due to peripheral vasodilation, where blood flow to the skin increases to dissipate core heat; therefore, heat is lost rapidly, rather than conserved as would happen via countercurrent exchange in normal conditions.
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