When you exercise, you can feel your body getting warmer, perhaps even starting to sweat. Why does exercise make you warmer?

A) Glucose oxidation speeds up during exercise to power muscular activities, and as a byproduct, extra heat is generated.
B) Your body is using anaerobic respiration, which releases more heat than oxidation.
C) More glucose is synthesized, requiring additional heat.
D) Your body is using fermentation to produce alcohol, which takes heat to break down.


A

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