Question #6428409Single Choice

Biology

Question

During exercise, how does the circulatory system adapt to meet the body’s increased energy demands?

Options

A
    By decreasing blood flow to muscles to conserve oxygen.
B
    By increasing the production of digestive enzymes.
C
    By pumping more oxygen-rich blood to active muscles.
D
    By slowing the heart rate to reduce energy use.

Answer & Analysis

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