Lactic acid buildup when you’re exercising causes a build up of oxygen. Your body cannot break down glucose in the blood. So, your heart beat increases because there is more oxygen than normal needing to be pumped throughout the body.
In short terms: because your heart needs to pump more oxygen, it is pumping faster causing a faster heart rate.
How does the whole question go?
Answer:
the tuba player is over heated
Explanation:
wool mostly conserves body heat. especially in warm weather...
Answer:
Breast Milk
Explanation:
More than half of an infant's caloric intake comes from Breast Milk
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