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3 years ago

14

_______________________________ are the smallest, thinnest vessels in a closed circulatory system and are the site of the exchan

ge of oxygen and carbon dioxide
A: Arteries
B: Capillaries
C: Veins

1 answer:

Greeley [361]3 years ago

5 0

Capillaries: <span>any of the fine branching blood vessels that form a network between the arterioles and venules.</span>

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