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Home Q & A Board Science-Related Homework Help Health, Nutrition, and Food Sciences
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Ghil Ghil
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6 years ago
Regular cardiorespiratory activity improves the efficiency of the heart by ________________________.
a. thinning the blood
b. strengthening the skeletal muscles
c. decreasing the blood volume
d. increasing the ability to pump blood with each stroke
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CavenCaven
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6 years ago
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