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Airida [17]
3 years ago
11

What is the function of the valves in veins in the legs?

Biology
2 answers:
emmasim [6.3K]3 years ago
4 0

Answer:

D

Explanation:

qwelly [4]3 years ago
3 0

Answer:

D.

Explanation:

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How long and how frequently should cold be applied to the injured area during the first 24 to 48 hours?
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It is a winter day in Florida, and the temperature is 40°F in the morning. While you are walking to class, your body uses a nega
zhannawk [14.2K]

Answer:

negative feedback

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