Answer:
A because science is not to be a math subject
Ummm, I think you need to attach a photo :)
<h3>What is AB0 System?</h3>
The AB0 System represents an important blood group in determining compatibility between blood types.
The discovery of the AB0 system took place in 1901 and is due to the physician Karl Landsteiner (1868 - 1943). He and his team noticed that when some types of blood were mixed together, the red blood cells agglutinate, which is called blood incompatibility.
Thus, it was verified that there were some blood types, which were called A, B, AB and 0. Hence, the ABO system emerged.
The determination of blood types is a genetic condition, constituting a case of multiple alleles, determined by three alleles: IA, IB, i.
With that being said, in blood type A there are A antigens and antibodies for B antigens. In type B, is the opposite there are B antigens and antibodies for A antigens. In type 0, there are no antigens and there are antibodies for both antigens A and B. In type AB, There are both A and B antigens and there are no antibodies.
See more about genetics at: brainly.com/question/12985618
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Answer:
A teacher that is wicked, bosses you all the time, dosnt take his time to teach you maths very well and is very very STUPID
