character: Robert Hooke
topic: Cell Theory and Early Microbiology
grade: 11
subject: Biology
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character: Anton van Leeuwenhoek
topic: Microscopy and Microbial Discovery
grade: 11
subject: Biology
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character: Matthias Schleiden
topic: Cell Theory Development
grade: 11
subject: Biology
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character: Theodor Schwann
topic: Contributions to the Cell Theory
grade: 11
subject: Biology
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