Question

To the lungs / the cred blood cells,
from the diffenent parts / carry
oxygen from the lungs / the
carbon dioxide to the different
parts of body / and returns.
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Answer 1

from the different parts the red blood cells carry oxygen from the lungs and returns carbon dioxide to different parts of the body.

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Answer 2

Explanation:

The protein inside (a) red blood cells that carries oxygen to cells and carbon dioxide to the lungs is (b) hemoglobin. Hemoglobin is made up of four symmetrical subunits and four heme groups.

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