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Viruses are infectious particles made of nucleic acid (DNA or RNA) and protein. Viruses are 100 times smaller than the size of bacteria.

Unit to measure red blood cell is million per cubic millimeter

What is red blood cell ?

A red blood cell, also called a hematopoietic cell, hemocyte, is a cell produced through hematopoiesis and found mainly in the blood

Unit to measure red blood cell is million per cubic millimeter

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