Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth because it

Question

Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth because it (A) is very specific and uses different macrophages (B) produces memory cells for mounting fast secondary response (C) has natural killer cells which can phagocytose and destroy microbes (D) provides passive immunity

Tardigrade Admin · Accepted Answer

Innate immunity is the non-specific type of defence that is present at the time of birth because it has natural killer cells which can phagocytose and destroy microbes (cellular barriers). Other forms of innate immunity are physical, physiological and cytokine barriers.

Q. Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth because it

is very specific and uses different macrophages

produces memory cells for mounting fast secondary response

has natural killer cells which can phagocytose and destroy microbes

provides passive immunity

Innate immunity is the non-specific type of defence that is present at the time of birth because it has natural killer cells which can phagocytose and destroy microbes (cellular barriers). Other forms of innate immunity are physical, physiological and cytokine barriers.