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Nature & Animals

Which outcome results in endothermic mammals when ambient temperature drops below their thermoneutral zone if insulation is damaged?

A)Increased metabolic rate to induce shivering
B)Decreased heart rate and blood pressure
C)Peripheral vasodilation for heat conservation
D)Suppressed thyroid hormone, inducing torpor

💡 Explanation

Shivering causes muscles to rapidly contract, thus generating heat, because this increases their metabolic rate. Therefore, shivering helps maintain core body temperature rather than induce hypothermia; this occurs in endotherms during cold exposure when insulation fails.

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