The four main groups are... Group O+ (the commonest), group A+, group B+ and group AB+
The four basic blood types are A, B, AB, and O.
the four types of blood are A, B, AB, and O
all blood types made compatible with each other
All four of the basic blood types can be either be positive or negative, they are A,B,AB, and O. Blood types are used to used define each person blood, they help to make blood transfusions more successful by matching up the blood types.
A, b, ab, o
a- b- o- ab-
red blood cells,white blood cells,plasma and platelets maybe....
The four blood types are A, B, AB, and O. The universal donor is O and the universal recipient is AB
There is four types of blood in humans A B AB and O.But in each of them types there are a possible of at least 20 genetically blood vgroups known today.
One non harmful antigen type is blood types. These carry antigens that are not typically harmful to humans. The common blood types are: A, B, AB and O.
Examples of four non-metallic lusters would be glassy, adamantine, pearly, dull.
oxygen blood cells and non-oxygen blood cells