Proteins or polypeptides. (They are interchangeable)
Answer:
Explanation:
The blood agglutinate or clots
This does not happen when serum containing B antibodies is added to red blood cells carrying the A antigen because an antibody reacts only with its specific antigen and no other.
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Answer:
The blood picks up co2 and also waste from the tissue. So I am guessing that it is co2.
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