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    Biology A (Salters-Nuffield) A-Level

    Non-specific defence

    What Non-specific defence means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.

    Definition of Non-specific defence

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    Reference: Pearson Edexcel

    Barriers form the first line of defence and are non-specific, preventing pathogen entry or creating conditions hostile to pathogens.
    Pearson Edexcel · Topic 6: Immunity, Infection and Forensics

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