character: Ms. Emily Johnson
topic: Structure of Blood Vessels
grade: 11
subject: Biology
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character: Dr. Sarah Thompson
topic: Circulatory System Overview
grade: 11
subject: Biology
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character: Mr. Alex Smith
topic: Function of Arteries and Veins
grade: 11
subject: Biology
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character: Mrs. Linda Green
topic: Capillaries and Tissue Perfusion
grade: 11
subject: Biology
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