Chemistry, 26.07.2021 22:00 BabyRage4900

Jane wants to study how a person's heart and lungs respond to intense exercise. She measures the heart rate and breathing rate of 10 people before,
during, and after a 5K race. Which body systems is she studying?
A. Cardiovascular and respiratory
B. Skeletal and urinary
C. Digestive and nervous
D. Muscular and reproductive
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