Question

which option would help maintain homeostasis during exercise?
increasing the amount of water excreted from the kidneys
developing goose bumps on the skin
decreasing the heart rate
speeding up the rate of breathing

Explanation:

During exercise, the body produces more carbon dioxide and uses more oxygen. Homeostasis requires balancing gas exchange. Speeding up breathing increases oxygen intake and carbon dioxide removal, which supports this balance. Excreting more water would disrupt fluid balance, goose bumps are for heat retention (not exercise homeostasis), and decreasing heart rate would reduce oxygen delivery to muscles, which is counterproductive.

Answer:

speeding up the rate of breathing