character: Dr. Sarah Winters
topic: Carbon Dioxide and its Effect on Hemoglobin
grade: 9
subject: Science
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character: Professor John Harrington
topic: Oxygen Transport in the Bloodstream
grade: 9
subject: Science
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character: Dr. Emily Xu
topic: Respiratory Physiology and Gas Exchange
grade: 9
subject: Science
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character: Mr. David Fields
topic: The Role of Carbon Dioxide in Homeostasis
grade: 9
subject: Science
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