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Dissected organisms and classified them.
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Invented first compound microscope
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Chemist who identified different gasses such as carbon dioxide
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Made improvements to the microscope by grinding out better lenses.
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Discovered cells.
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Stated all living things are made of cells.
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Discovered germs and bacteria make us sick.
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Discovered nucleus of plant cells.
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Co-Founder of cell theory.
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stated that new plant cells formed from the nuclei of old plant cells
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Discovered sperm cells and egg cells are actually cells.
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Added to the cell theory that all living cells originate from other previous cells.