Which thermoregulatory effect occurs when a mammal's cutaneous blood vessels constrict during shivering?

💡 Explanation

When cutaneous blood vessels constrict during shivering, vasoconstriction reduces blood flow near the skin's surface because sympathetic nervous system activation minimizes convective heat transfer to the environment. Therefore decreased heat loss results, rather than increased evaporation, demand, or temperature normalization, which rely on opposing mechanisms.

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