character: Laura Chen
topic: How Respiratory System Affects Blood Oxygen Levels
grade: 10
subject: Biology
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character: Dr. Cara Smith
topic: The role of hemoglobin in oxygen transport
grade: 10
subject: Biology
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character: Mr. Daniel Johnson
topic: Effects of exercise on respiratory and circulatory systems
grade: 10
subject: Biology
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character: Ms. Angela Ramirez
topic: Understanding gas exchange in the alveoli
grade: 10
subject: Biology
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