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The factors that are responsible for the ABO blood type, or the Rh, are located on the surface of the .

Respuesta :

The factors that are responsible for the ABO blood type, or the Rh, are located on the surface of the red blood cells, also known as erythrocites. They are used to deliver oxygen to the body tissues. 

SOS:

The answer is erythrocytes!

*Erythrocytes means red blood cells!

Hope this helps!