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He dissected animals and studied the ways that they reproduce.
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Zacharias Jansen and his father, Hans invented and built the first microscope.
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Jan Baptist van Helmont described the idea that living things come from nonliveing things, :Ex: The recipie for mice, pieces of cheese and bread wrapped in rags and left in a dark corner
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Robert Hooke looked at thin slices of cork through a microscope and saw little boxes he called cells.
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Anton van Leeuwenhoek saw the first living cels through a microscope.
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Lorenz Oken proposes that “all organic beings originate from and consist of vesicles or cells
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In 1831 a scientist named Robert Brown discovered the cell nucleus.
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1838 Matthias Schleidens methods had led him to propose the cell theory for plants
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Theodor Schwann saw the implications of Schleidens work and applied it to animals
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Albrecht von Roeliker discovered that sperm and eggs are also cells.
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Rudolph Virchow discovered living cells must come from from preexisting cells
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Louis Pasteur used a flask experiment to disprove Spontaneous Generation. the theory that living thing come from nonliving things.
