mechansim of heart? please copy past matt krna mujhe simple languages me ans chahiye
anju2730:
ooye Tu idhar h
phle hawan ku nhi karbaya
kundi na khadkao pandit sidha andar aao pandit
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pumping of blood to all parts
where are you from??
ok so i know heart pumps blood but my question was that how it works??
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