Blood type O

HOW IT IS BUILT The methods behind it Hemorrhagic shock WHAT IT CAN DO Its core abilities WHERE IT IS USED — · — — · — BTO learns · reasons · acts
How it's built
What it can do
Where it's used

Blood type O is one of the four major human blood groups, determined by the absence of A and B antigens on the surface of red blood cells. People with type O blood have neither the A nor the B protein markers that characterize other blood types, making it the most common blood type worldwide.

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