character: Charles Darwin
topic: Darwin's experiments on plant growth and light
grade: 11
subject: Biology
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character: Charles Darwin
topic: Phototropism in plants
grade: 11
subject: Biology
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character: Charles Darwin
topic: The role of auxins in plant growth
grade: 11
subject: Biology
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character: Charles Darwin
topic: Darwin's contributions to evolutionary biology
grade: 11
subject: Biology
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