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Zacharias Jansen invented the microscope
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Robert Hooke discovered the cellular composition of cork and introduced the word cell to science
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Anton Van Leeuwenhoek improved magnification of microscopes by polishing lenses
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Anton Van Leeuwenhoek he discovered animal cells called "animalcules "
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Anton Van Leeuwenhoek discovered bacteria from a sample of salvia from his mouth.
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Robert brown discovered the nucleus in plant cells.
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Matthias Shleiden discovered that plants were made up of cells
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Theodore Schwann discovered that animals were made up of cells
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Albrecht Von Roelliker realized that sperm cells and egg cells are also cells
