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Its called BLOOD.

Blood is a very versatile chemical, not only does it carry oxygen from the lungs to all parts of the body, but also carries carbon dioxide back to the lungs for exhalation.

Blood is a very complex molecule, but principally contains and iron (III) ion (Fe^3+ ; the red colour), but this iron ion is held inside a porphyrin ring of nitrogen/carbon atoms.

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lenpollock

Lvl 17
1y ago

What else can I help you with?