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Hemoglobin is a protein that carries oxygen around your body. what is hemoglobin made from?
A. Fatty acids
B. Nucleic acids
C. Monosaccharides
D. Amino acids

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X3n0Captain
The answer is D. The question states that hemoglobin is a protein, and proteins are made up of amino acids. 

Answer: Amino acids

Explanation: Hemoglobin is a protein (polymer of amino acids) found in the red blood cells that is used for the transportation of the oxygen from the lungs to the various part of the body.

It also functions by returning the carbon dioxide into the lungs for the purification.This is main component by which the oxygen reaches each and ever cell of the body.