which-of-the-following-processes-is-an-example-of-the-second-line-of-defense-det

Question

Which of the following processes is an example of the second line of defense detecting and eliminating microbes?

Accepted Answer

Phagocytes recognizing and engulfing bacteria.

Answer

Microbiome competing with pathogens for resources.

Answer

Skin acting as a physical barrier.

Answer

Mucus trapping pathogens in the respiratory tract.