Which best describes arteries and veins?
a) both have valves.
b) both are thick,...
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Biology, 01.11.2019 15:31 chrissyg76
Which best describes arteries and veins?
a) both have valves.
b) both are thick, muscular, and elastic.
c) arteries carry blood back to the heart; veins connect arteries and capillaries.
d) arteries carry blood away from the heart; veins carry blood back to the heart.
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