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How many blood types are there?

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There are 4 different blood types (A, B, O, & AB). Each blood type can either be Rh positive or Rh negative. (e.g., A+, A-, B+, B-, O+, O-, AB+, AB-).

Blood type AB is the universal receiver when it comes to donating blood. That means anyone can donate blood to a person with AB blood.

Blood type O is the universal donor, which means that anyone can take O blood. '

All other blood types can only be donated to their specific blood type (i.e. A-A, B-B.)
A B AB O, each of which can be positive or negative, for a total of eight.
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How many blood types do humans have?

Humans have 8 blood types: A+ and A- B+ and B- AB+ and AB- O+ and O- all types can receive donations from their individual blood type (for example anyone with A+ can (MORE)

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How many types of human blood are there?

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
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How many blood types are there and what are they?

There are 4 basic blood types. A, B, AB, and O. Then, there is the "rh" factor, determining if you are negative or positive. So, there is A+, A-, B+, B-, AB+, AB-, and O+, or (MORE)

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What are and how many blood types are there?

1.Type O, Type A, Type B, and Type AB. There are four types of blood, not three. 2. Each of the four blood types are classified as Rh positive or Rh negative. 3. It is con (MORE)