John is jogging on a winter day. the outdoors temperature is 31 degrees f. yet, his body temperature is 98 degrees f. what term best describes the process causing this difference in temperature

Homeostasis!! It's where conditions in the body are controlled, to provide a constant internal environment.  The conditions that must be controlled include body temperature, water content, carbon dioxide level, and blood sugar level. 

Here is a link more about it!
https://healthfully.com/homeostasis-work-4572058.html

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