the hollow, muscular organ in a vertebrate animal that receives blood from the veins and pumps it through the arteries by alternate dilation and contractionOriginally Posted by Tawi2
Awwwwwwww cute...........Whats a heart
the hollow, muscular organ in a vertebrate animal that receives blood from the veins and pumps it through the arteries by alternate dilation and contractionAwwwwwwww cute
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