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Alex777 [14]
3 years ago
6

ABO blood group is a classification of blood depending on the presence of 4 different antigens.

Physics
2 answers:
grin007 [14]3 years ago
8 0

Answer:

A

Explanation:

i feel it is correct

in the sense that it dwpends on the presence of 4different antigens

tensa zangetsu [6.8K]3 years ago
8 0
A
I think, but I’m not sure.. I’m slow
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