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18 September, 04:20

Which of the formed elements of the blood determines ABO blood types?

A. White blood cells

B. Red blood cells

C. Antibodies

D. Plasma

I know that the answer is either red blood cells or antibodies and I know this: Red blood cells have special molecules called antigens on their surfaces. Each person has either the A antigen, the B antigen, both the A and B antigens, or none of the antigens on their red blood cells. A person's immune system will respond to these antigens by reacting with protein antibodies, which circulate in their blood plasma. But, I'm still not sure which is the correct answer.

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Answers (2)
  1. 18 September, 06:07
    0
    I think it's B. The one that says red blood cells. That is the most common to me
  2. 18 September, 07:05
    0
    A) red blood cells that is the answer
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