character: Capillaries
topic: Exchange of Substances in Blood Vessels
grade: 10
subject: Biology
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character: Arteries
topic: Blood Vessel Structure and Function
grade: 10
subject: Biology
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character: Veins
topic: Return of Blood to the Heart
grade: 10
subject: Biology
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character: Red Blood Cells
topic: Oxygen Transport and Exchange
grade: 10
subject: Biology
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