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OpenStudy (readergirl12):
Which three components are common to the circulatory systems of most living animals? A. arteries, veins, capillaries B. vessels, heart, circulating fluid C. aorta, ventricles, atria D. blood, heart, cavities I think either B or A.. -.-
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OpenStudy (gabebae):
It's B
OpenStudy (readergirl12):
Yey.. I have a few more...Do you mind helping me? :o
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