20 micrometers (a human hair is 200 micrometers)
the average size of a red blood cell is about 7.2 micrometers in diameter.
The RBCs are biconcave in shape with an approximate thickness of 2-3 microns and a diameter of around 7.0 microns.
They are about 4 micrometers in size. And 1 micrometer is 1/10,000th of a centimeter.
20 micrometers (a human hair is 200 micrometers)
12 mm, or 1.2 cm.
7-9 micrometers
500:1
The brain has cells called neurons. Neurons vary in size from 4 microns (.004 mm) to 100 microns (.1 mm).
7 microns
HIV is about 0.1 microns in size. Hope this helps! Dr. B.
.250 inches
the average size of a red blood cell is about 7.2 micrometers in diameter.
very small!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The big one
1/10 of a millimeter of 100 microns
1000 micrometres (microns)
they are only one blood cell thick!
Diatoms are microscopic. Diatoms range in size from about 2 microns to about 500 microns or equal to the width of a human hair.
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