The body's innate defenses against infection include

Question

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The body's innate defenses include physical barriers such as dead skin cells and mucus that prevent pathogens from entering the body. This is a nonspecific defense mechanism and is effective against a wide range of pathogens. Options A, B, and D are part of the adaptive immune system, which involves specific antibodies and memory cells produced to fight a particular pathogen. The innate immune system is the body's first line of defense, and its nonspecific means of defense include various physical and chemical barriers.

The Body's Innate Defenses Against Infection Include