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.

• Which physiological effect occurs when a mammal enters a thermoneutral zone during hibernation?
• Which risk increases when dynamic wing loading suddenly exceeds capacity?
• Which consequence results when rising average air temperature reduces rubisco specificity for carbon dioxide?
• During nocturnal migration, which navigational error occurs when celestial cues become unreliable?
• Which outcome reduces photorespiration when a C4 plant's bundle sheath encounters high oxygen levels?
• Which disruption occurs when ecdysone signaling is prematurely activated in Drosophila imaginal discs?