Humans, for a start.
there are 8 types of blood a+, b+, o+, ab+,a-,b-,o-,ab-
the four types of blood are A, B, AB, and O
o+,o-,a+, a-,b-, b+,ab+, ab-
The types of blood include: A, B, AB, and O. (A-, A+, B-, B+, AB-, AB+, O-, O+)
Blood types/groupsA+, A-B+, B-AB+, AB-O+, O-
AB+ AB- A+ A- B+ B- O+ O-
type ab- is the rarest, with an average of 1% of the population having it.
When donating blood they can only be given to a specific blood type. Type A can be given to A or AB blood types only. Type B can be given to B or AB blood types only. Type AB can only be given to AB. While type O can be given to all type A, B, AB and O blood types.
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.
The four blood types for humans are: A, B, AB and OO. Also the RH factor determines is your blood type is RH negative (-) or RH positive (+). All blood types can then be classified as: A+, A-, B+, B-, AB+, AB-, O+ or O-.
If the parent's blood type is A and B, respectively, the possible blood type of their child are A, AB, B and O.
There are ten, in order from most common to most rare: O+ O- A+ A- B+ B- AB+ AB-. O+ is the most common with AB- being the rarest