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Is 0.0000000990 kilometers as long as a Red Blood Cell?

It's about thirteen times as long as a Red Blood Cell
The length of a Red Blood Cell is about 0.00000000750 kilometers.
(a.k.a. RBCs, a.k.a. haematids, a.k.a. erythrocyte, a.k.a. erythroid cells, a.k.a. red blood corpuscles)
An average Red Blood Cell measures 7.5 µm (micrometers) in diameter. An average human has 20 - 30 trillion red blood cells in their body and each cell completes a circulatory lap in about 20 seconds.
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