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Which are correct examples of physical (P), chemical (C), and biological (B) barriers? P: complement system; C: saliva; B: coughing P: coughing; C: saliva; B: complement system P: coughing; C: sneezing; B: complement system P: complement system; C: saliva; B: sneezing

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The correct examples of physical (P), chemical (C), and biological (B) barriers is P: coughing; C: saliva; B: complement system.

What are barriers?

Barriers are the immune defence mechanisms used by the body to prevent the invasion of microorganisms from causing harm.

Examples of immune barriers include:

  • Physical barrier: Example is coughing

  • Chemical barrier: Example is saliva

  • Biological barrier: complement system.

Learn more about immune system here:

https://brainly.com/question/8633386

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