character: Dr. Oxygen
topic: Oxygenated Blood Functions
grade: 11
subject: Biology
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character: Dr. Hemoglobin
topic: Oxygen Transport in Blood
grade: 11
subject: Biology
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character: Dr. Circulation
topic: Blood Flow and Oxygen Delivery
grade: 11
subject: Biology
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character: Dr. Respiration
topic: Oxygen Exchange in the Lungs
grade: 11
subject: Biology
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