xbeatdroperzx xbeatdroperzx

28-11-2018
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Antonie van Leeuwenhoek first observed which of the following? Brain cells Red blood cells Viruses Bacteria

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carolinagiammarino78 carolinagiammarino78

28-11-2018

According to Wikipedia: He was the first to document microscopic observations of muscle fibers, bacteria, spermatozoa, red blood cells, crystals in gouty tophi, and blood flow in capillaries. So the answer would be: Red Blood Cells

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senorita2017 senorita2017

10-07-2019

Answer: RED BLOOD CELLS

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