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prouduced the first compound microscope (2 lenses)
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-looked at a thin slice of cork (oak cork) through a compound microscope
-observed tiny, hollow, roomlike structures
-called these structures 'cells' because they reminded him of the rooms that monks lived in -
-looked at blood, rainwater, scrapings from teeth through a simple microscope (1 lens)
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-discovered that plant parts are made of cells
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-discovered that animal parts are made of cells
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-stated that all living cells come only from other living cells
