Why do I have blood?

A mix of special cells and liquid ‘’plasma,’’ blood delivers all the good stuff (oxygen vitamins, minerals, and chemicals called hormones) to the cell in your body and carries away all the bad stuff (carbon dioxide and other waste) for disposal. Red blood cells transport oxygen, while white blood cells fight infection. Special cells called platelets seal the leak when blood vessels break – a process called clotting. An oxygen-carrying protein called hemoglobin is what gives blood its red color.


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