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Hans and Zacharias Janssen
produced first compound microscope (2 lenses) -
Observed a coark through a compacted microscope
saw tiny structers in it called them cells because it reminded him of monk cells -
Looked at blood, rain water, and teeth scrapings saw cells and called them animalcules
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Observed plants through a microscope found that they were made of cells
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veiwed animal parts under a microscope concluded that they were made up of cells
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Came up with the theory that cells come from other cells
