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BIOLOGY TOPIC 11 ANIMAL PHYSIOLOGY (HL)
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Pregunta:
What are examples of the first line of defense? (4)
Autor: Sammy UniverseRespuesta:
Skin and mucous membranes lactic acid and fatty acids on the skin lowers pH (5,6) mucus washes away pathogens lysozymes in tears can cause cell lysis cilia in the trachea can help remove pathogens
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Sammy Universe