protective barriers

Which Body Defence Is A Chemical Barrier?

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Which Body Defence Is A Chemical Barrier? Sweat, mucus, tears, and saliva all contain enzymes that kill pathogens. Urine is too acidic for many pathogens, and semen contains zinc, which most pathogens cannot tolerate. In addition, stomach acid kills pathogens that enter the GI tract in food or water. What is a chemical barrier in

What Are The 5 Physical Security Controls Required For Information Security?

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What Are The 5 Physical Security Controls Required For Information Security? Closed-circuit surveillance cameras. Motion or thermal alarm systems. Security guards. Picture IDs. Locked and dead-bolted steel doors. Biometrics (includes fingerprint, voice, face, iris, handwriting, and other automated methods used to recognize individuals) What are the 5 major goals of physical security? The 5D’s starting