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Biology 7 Online
OpenStudy (anonymous):

I will give a medal. Please help : This question is related to the circulatory system : Where does the pushing force come out from to push the blood out of the heart ?

OpenStudy (ookawaiioo):

Its the left ventricle contracting.

OpenStudy (anonymous):

Blood leaves the heart from EITHER ventricle. The right ventricle pumps to the lungs, the left ventricle pumps to the body.

OpenStudy (librarian):

Hmm

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