character: Red Blood Cells
topic: Transport of Oxygen in the Blood
grade: 9
subject: Science
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character: Hemoglobin
topic: Oxygen Binding and Release
grade: 9
subject: Science
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character: Capillaries
topic: Exchange of Gases in Tissues
grade: 9
subject: Science
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character: Aorta
topic: Distribution of Oxygen-Rich Blood
grade: 9
subject: Science
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