I’m pretty sure A can receive A and O. O is a universal blood type that can donate to any other blood type. This is because O blood does not have signal proteins surrounding it, so blood cells from other blood types do not attack the O blood cells. A can also receive A, because the A proteins recognize the other A proteins.
Salutations!
The most common system of measurement used by scientists is called the _____.
The most common system of measurement used by scientists is called the metric system. Metric system includes kilogram, gram, liter, millilieter etc.
Hope I helped (:
Have a great day!
