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In general, how do veins differ in structure from capillaries and arteries?

AVeins have more smooth muscle tissue than arteries and capillaries.
BVeins appear rounder in a cross section than arteries and capillaries.
CVeins have valves which are absent in arteries and capillaries.
DVeins have thinner inner walls than arteries and capillaries

Verified Answer :

the answer is letter choice D

belia
DArteries are the main branches and veins are smaller and thinner to transport blood to other parts of the body that arteries aren't

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