character: Robert Hooke
topic: Discovery of Cells
grade: 10
subject: Biology
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character: Anton van Leeuwenhoek
topic: Microscopy and Single-Celled Organisms
grade: 10
subject: Biology
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character: Theodor Schwann
topic: Cell Theory
grade: 10
subject: Biology
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character: Rudolf Virchow
topic: Cell Division
grade: 10
subject: Biology
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