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Biology 19 Online
OpenStudy (anonymous):

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

thomaster (thomaster):

what would your best guess be?

OpenStudy (anonymous):

b

thomaster (thomaster):

exactly :) The fluid, the pump and the transportation roads.

OpenStudy (anonymous):

thanks

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