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The microscope was invented by Zacharias Janssen in 1590 it consisted of two lenses mounted inside a tube. It was possible to modify the tube length and this vary the distance between lenses, which resulted in a different magnification, this allowed other scientists to discover things about the cell.

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In biology, the cell theory is a scientific theory first formulated in the mid-19th century.

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In biology, the cell theory is a scientific theory first formulated in the mid-19th century.

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Robert Hooke saw for the first time the cells of a cork tree with a primitive microscope the Cork cells were made up of small polyhedral cavities reminiscent of the cells of a honeycomb

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Anton Van Leeuwenhoek

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These cells were the ones that Anton Van Leeuwenhoek saw

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Matthias Schleiden and Theodor Swaaham discovered that all living beings where formed by cells either one or several, they discovered this by watching alive tissues and vegetables cells

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Vegetables cells

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Rudolph Virchrow discovered that the cells are the unit of origin of living beings. The cells aren't made by gods or spontaneus generation there are made by a division of a cell.

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Theodor Boveri and Sutton discovered that cell is the genetic unit of living beings, genes are found at specific locations within chromosomes. Every cell has hereditary factors

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Walter Stanborough Sutton