Question

d. _______________ are the extremely thin blood vessels which connect arteries to veins.

Answer 1

Answer:

Capillaries

Capillaries. Capillaries are tiny, extremely thin-walled vessels that act as a bridge between arteries (which carry blood away from the heart) and veins (which carry blood back to the heart).

Explanation:

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Answer 2

Answer:

capillaries are the extremely thin blood vessels which connect arteries to veins

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