Which physiological effect sharply accelerates ice melt beneath a hibernating bear under warming temperature conditions?

💡 Explanation

Increased external temperatures causes peripheral vasodilation because warmth triggers blood vessel expansion, increasing thermal conduction from the bear's skin to the surrounding ice, accelerating melting. Therefore, vasodilation accelerates ice melt through conduction, rather than ketogenesis, myogenesis, or fermentation which have primarily metabolic insulation impacts.

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