It is very easy and simple difference that is antigens and antibodies .
it can be different due to donor and recipient also .
A type blood having antigens
whereas B type blood having nil.
B type blood having antibodies
whereas A type blood having nil.
I think the answer is the individuals born per unit time.
What r we suppose to be putting on the poster? What age range is this for? Young children or teenagers?
B a very large molecule made of smaller molecules
They are different because they use different frequency