Answers

2014-09-22T16:54:53+05:30
A heart is an important organ for every living mammal or organism that requires blood. It basically separates Oxiginated blood from deoxiginated  blood.Though our heart is as big as our fists it pumps blood to each part of our body. Its a muscular organ our heart has four chambers, upper left and right artria, and the lower left and right ventricals.
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