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Download Bacterial Classification
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Defenses â Skin & Mucus ï¬ Chemical Factors â Sebum â unsaturated fats which inhibit microogansisms on skin (some bacteria can metabolize â acne) â Perspiration âwashes bacteria â high salt â Lysozyme digest cell wall; found in saliva, nasal secretions, tears and perspiration â Acid (pH 1-3) prevents bacterial growth in stomach â Normal bacteria inhibit pathogens