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Health, 31.01.2020 08:52 dpickard9848

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how do capillaries differ in structure from arteries and veins?

a. capillaries have smoother muscle tissue than veins.
b. capillaries appear to have a larger diameter than veins
c. capillaries have valves which are absent in arteries.
d. capillaries are only one cell thick and lack smooth muscle.

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25 !
how do capillaries differ in structure from arteries and veins?

a. capillar...
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