character: Carl the Capillary
topic: Gas Exchange and Nutrient Transfer
grade: 10
subject: Biology
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character: Oxygen Ocelot
topic: Oxygen Transport in Circulatory System
grade: 10
subject: Biology
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character: Nina Neuron
topic: Nerve Signals and Communication
grade: 10
subject: Biology
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character: Gloria Glucose
topic: Cellular Respiration and Energy Production
grade: 10
subject: Biology
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