Answer – B. (Return blood to the lungs)
The function that capillaries serve in the cardiovascular system is to return blood to the lungs. The capillaries beds are the area where the excess carbondioxide produced by the cells are exchanged with oxygen. The deoxygenated blood is then transported by the capillaries through the circulatory system back to the lungs for reoxygenation
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anxiety , sweaty palms , dizzy , feels like passing out
<span>The best answer would be letter D. Walking on the treadmill is easy but the hard part is being consistent with your routine in order to maintain cardiovascular health. As Bethany goes on walking on the treadmill, the activity becomes familiar which leads to boredom. She needs to explore other physical activities so that excitement and the interest will still be there.</span><span />
