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He helped cell theory by making the microscope.
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Robert Hooke helped contribute to the Cell Theory because he found the cell.
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Anton Van Leeuwenhoek contributed to cell theory because he made microscope lenses clearer.
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Theordor Schwann contributed to the cell theory because he discovered that all plants are made up of cells.
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Matthias Schleiden contributed to cell theory because he saw that different parts of the plants organisms are made up of cells.
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Rudolph Virchow contribued to the cell thoery because he states that all cells come from pre-existing cells.
