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First-Line Defenses: Chemical Barriers

First-Line Defenses: Chemical Barriers

19. Innate Immunity / First-Line Defenses: Chemical Barriers / Problem 5

Which of the following best describes the role of gastric juices in the body's innate immune system?

A

Neutralizing acids to protect the intestinal lining

B

Digesting proteins and killing ingested pathogens

C

Facilitating the absorption of nutrients

D

Producing antibodies to target specific pathogens

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