character: Dr. Emily Carter
topic: Impact of Exercise on Heart Health
grade: 9
subject: Biology
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character: Dr. John Smith
topic: Benefits of Aerobic Exercise on Cardiovascular Health
grade: 9
subject: Biology
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character: Sarah Johnson
topic: How Physical Activity Strengthens Heart Muscles
grade: 9
subject: Biology
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character: Dr. Angela Wu
topic: The Role of Exercise in Reducing Heart Disease Risk
grade: 9
subject: Biology
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