Respuesta :

What was the first cell viewed by the light microscope?
answer: oak bark 
It has long been known that Leeuwenhoek, one of the most respected scientists of his time, made a microscope which utilised two lenses that has a total magnification of 300x. He, then, first observed the organisms that were found in a drop of pond water. This marked the beginning of the study of organisms that is too small to be seen by naked eyes - microbiology.
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