Understanding Blood Types and Blood Transfusion Principles
In 1901, Karl Landsteiner discovered that the serum of one person could agglutinate the red blood cells of another, and vice versa. Subsequently, the A and B antigens, antibody A ...
Tag: state of matter
Why is ice a solid but still floats?
We commonly recognize three states of matter: solid, liquid, and gas. The atoms in a solid are denser than those in a liquid, and the atoms in a liquid are ...
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