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1 vote
Hemoglobin is __________________________________________.

A an iron-rich compound in the blood that helps carry the oxygen

B pumps to the lungs

C consists of the heart, blood, and blood vessels

1 Answer

5 votes
Hemoglobin, found in red blood cells, gives blood its red color; its job is to carry oxygen throughout your body.

Answer:
A. An iron-rich compound in the blood that helps carry the oxygen.
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