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14-11-2017
Biology

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Which parts of the heart prevent backflow of blood in the circulatory system and allow the heart to work like a pump?
A.)atria
B.)valves
C.)ventricles

Respuesta :

AngelCase AngelCase

14-11-2017

The answer is B.) valves

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14-11-2017

The answer is B)Valves

Answer Link

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