The answer to your question is hemoglobin
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sry i dont know yrr so sry gor that
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i think they must be able to create good hypothesis based on research.
Atoms of different elements always combine in the same way.
John Dalton noted that if the components are added to one exacerbated, the share of their masses will dependably be the same. Dalton's been an English scholar. The component mass of that mix is measured by the confirmation of the presence of molecules assembled by John Dalton.
