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← Nature & AnimalsWhich 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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