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Biology, 26.09.2019 20:00 kinziemadison12

Which best describes arteries and veins? both have valves. both are thick, muscular, and elastic. arteries carry blood back to the heart; veins connect arteries and capillaries. arteries carry blood away from the heart; veins carry blood back to the heart.

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Which best describes arteries and veins? both have valves. both are thick, muscular, and elastic. a...

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