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Biology, 20.08.2019 19:00 trist22

Which series best illustrates the pathway of blood flow in a closed circulatory system?
a. heart, veins, capillaries, arteries
b. heart, arteries, capillaries, veins
c. heart, veins, arteries, capillaries
d. heart, arteries, veins, capillaries

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