Question

What is the main component of red blood cells that carries oxygen?

a. carbon dioxide

b. hemoglobin

c. water

d. salt

Answer 1

Answer: Your answer is B. Hemoglobin

Explanation: Red blood cells are capable of creating a rather unique protein called hemoglobin that carries oxygen to the lungs, and carbon dioxide out of the lungs!

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Answer 2

I think the answer will be B