成人快手

Microorganisms and health

Part of Combined Science

  • Microorganisms and health

    • Communicable diseases (CCEA)

      A communicable disease (usually caused by a microorganism such as bacteria, virus or fungus) can be passed from one organism to another.

    • Defence mechanisms (CCEA)

      The body has adapted defence mechanisms to protect itself against the entry of microorganisms.

    • Alcohol and tobacco (CCEA)

      Alcohol can be taken in moderation but the use of tobacco products causes serious health problems.

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