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-Discovered honeycomb-like structure in a cork slice using a primitive compound microscope
-Discovered the cell -
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-Invented microscope that could magnify objects x270 their size
-Discovered bacteria cell in pond water (1670) -
-Discovered protozoa (1683)
Protozoa-diverse group of unicellular eukaryotic organisms -
Published in the 1830s by Thedor Schwann and Matties Schleiden
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-Discovered the plant cell
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-Concluded that not only plants but animal tissue is composed of cells
