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Which series best illustrates the pathway of blood flow in a closed circulatory system?

a. Heart, veins, arteries, capillaries
b. Heart, veins, capillaries, arteries
c. Heart, arteries, veins, capillaries
d. Heart, arteries, capillaries, veins

User GyroCocoa
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1 Answer

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i would say that it's D- Heart,Arteries,Capillaries,Veins. I hope this helps :)
User Hamlet Kraskian
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