The components of the second line of defense against microbes may be characterized as
A) responders to invasion.
B) detecting the unique features of specific pathogens.
C) passive barriers.
D) mechanisms to strengthen the first line of defense.
E) both passive barriers and detecting specific pathogen features.

Question

Quizplus · Accepted Answer

The second line of defense includes innate immune responses that act as responders to invasion, such as phagocytes and inflammation, rather than passive barriers or specific pathogen detection.

The Components of the Second Line of Defense Against Microbes