Different parts of the body’s have natural defence mechanisms to stop pathogens infecting the body. These defences include: • skin • tears  • secretions from the stomach. Describe how each defence stops pathogens infecting the body. – 7624

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1. Skin acting as a barrier.

   Enzymes in tears killing microbes.

   Acid in the stomach killing microbes.

   Acid and enzymes breaking down microbes.

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