bloodtypes Tag Posts Index

sydewalka daily digest : 2019/06/18 08:41:13

Not all human blood is exactly alike. each person has a particular combination of materials in his or her blood. This substances can react with each other when blood

Blood for emergency

TIL Our blood types evolved millions of years apart

So Today I found out that the 4 main blood types all evolved millions of years apart. source There are 4 main blood types, Type A, B, AB and O Each blood type is