The major means of increasing heat production in response to a cold environment is

Question

Quizplus · Accepted Answer

Vasoconstriction of blood vessels in the skin and wearing warm clothing help to conserve heat, but they do not actually generate heat. Increased food intake can elevate metabolic rate, but it takes time to process and digest food, so it is not the most immediate or efficient means of increasing heat production. Vasodilation of blood vessels in the skin actually promotes heat loss. Shivering thermogenesis and increased voluntary activity are both powerful means of generating heat quickly, and are the major means of increasing heat production in response to a cold environment.

The Major Means of Increasing Heat Production in Response to a Cold