Blood types | Human anatomy and physiology | Health & Medicine | Khan Academy

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Created by Patrick van Nieuwenhuizen. Watch the next lesson: https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/introduction-to-hematologic/v/blood-cell-lineages?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine Missed the previous lesson? https://www.