character: Coach Martinez
topic: Improving Heart Rate Through Training
grade: 10
subject: Biology
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character: Dr. Smith
topic: Effect of Exercise on Heart Rate
grade: 10
subject: Biology
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character: Ms. Johnson
topic: Cardiovascular Health and Fitness
grade: 10
subject: Biology
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character: Mr. Lee
topic: Understanding Heart Rate Variability
grade: 10
subject: Biology
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