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sammy [17]
3 years ago
11

Veins contain a network of valves to insure a one-way flow of blood but arteries do not. This is because veins must counteract t

he force of _______ on blood flow.
Physics
2 answers:
Virty [35]3 years ago
7 0
Hello!

answer is "force"

have a nice day!
Elena-2011 [213]3 years ago
6 0
They must counteract the force of blood pressure
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