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    Combined Science GCSE

    Obligate parasites

    What Obligate parasites means in Combined Science GCSE, as defined for AQA.

    Definition of Obligate parasites

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    Reference: AQA

    Viruses are obligate parasites because they cannot carry out life processes independently and reproduce only inside living host cells.
    AQA · Communicable (infectious) diseases (study guide)

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