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Combined two convex lenses within a tube, thus constructing the fore runner of the compound microscope
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Described microscopic structure of familiar substances including the cellular structure of cork.
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Improved the polishing of lens of short focal lengths to improve magnification
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Discovered Bacteria
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Stated thate all living things originate from and consist of cells
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Published his observations reporting the discovery and widespread occurrence of nuclei to cells
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Discovered that plants 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
