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Nature & Animals

Which mechanism causes increased heat loss in basking seals undergoing exercise?

A)Peripheral vasodilation near the skin
B)Increased metabolic rate from shivering
C)Decreased insulation from blubber compression
D)Countercurrent heat exchange in flippers

💡 Explanation

Peripheral vasodilation increases heat radiation as blood flow close to the environment increases; therefore heat moves from the warmer core to the surface and is lost. This occurs because surface blood vessels dilate, rather than vasoconstriction.

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