Which statement is true about innate immunity?
A) Innate immunity is the first, and most general, mechanism of protection against pathogens.
B) The extent of an innate immunity response depends on an infected animal's previous exposure to a pathogen
C) Innate immunity is based on recognition of antigens that are specific to a pathogen
D) Only vertebrates use innate immunity

Question

Quizplus · Accepted Answer

Innate immunity is indeed the first line of defense in the immune system, providing a general mechanism of protection against pathogens. It is not dependent on previous exposure to a pathogen, does not rely on recognizing specific antigens, and is found in both vertebrates and invertebrates.

Which Statement Is True About Innate Immunity