Answered

Which of the following are examples of chemical barrier defenses? Select all that apply.

A. Mucus
B. Acidic environment of stomach
C. Lysozyme found in saliva
D. Dead, keratinized epithelium skin cells that are dry and continuously sloughed off



Answer :

GinnyAnswer

Final answer:

Chemical barrier defenses like mucus, acidic stomach environment, and lysozyme in saliva protect the body from pathogens.


Explanation:

Chemical barrier defenses include various mechanisms to protect the body from pathogens. Examples include:

  • Mucus: Traps and rinses away pathogens
  • Acidic environment of stomach: Kills pathogens entering the digestive system
  • Lysozyme found in saliva: Destroys bacteria cell walls

Therefore, mucus, acidic stomach environment, and lysozyme in saliva are examples of chemical barrier defenses against pathogens.


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