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What is a substance which allows the red blood cells to carry oxygen and iron.

User Hitttt
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Answer:

Hemoglobins allow the red blood cells to carry oxygen and iron.

User Spedy
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The answer is hemoglobin. The substance which allows the red blood cells to carry oxygen and iron is called hemoglobin. It is a protein containing iron. Its main function is to carry oxygen to all the parts of the body.
User Maresh
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