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Neko2
Rank: Archimedes (9,658) | Biology (183), human body (28), Anatomy and Physiology (18)
6 minutes after the question was opened (02/14/2007 12:49pm)
It is an essential element in haemoglobin. This is the stuff that transports oxygen round your body from the lungs. http://en.wikipedia.org/wiki/Hemoglobin copy
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