AS Biology - Cell-mediated immunity (OCR A Chapter 12.6)
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AS Biology - Humoral immunity (OCR A Chapter 12.6)
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AS Biology - Immune response OVERVIEW (OCR A Chapter 12.5-6)
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Specific (Adaptive) Immunity | Humoral and Cell-Mediated Responses
8:12
AS Biology - Plant defences against pathogens (OCR A Chapter 12.4)
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Immunology | T- Cell Development
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Cell mediated immunity | innate immune response
15:17
Understanding the Immune System in One Video
16:48