character: Ms. Lee
topic: Circulation: The Role of Exercise
grade: 10
subject: Science
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character: Dr. Smith
topic: Effects of Physical Activity on Heart Health
grade: 10
subject: Science
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character: Coach Johnson
topic: How Exercise Improves Blood Flow
grade: 10
subject: Science
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character: Mr. Harris
topic: The Importance of Cardiovascular Fitness
grade: 10
subject: Science
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