Innate immunity is 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 barriers, physiological and cytokine barriers.
Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth…
NEET UG 2019 — Zoology Human Health and Diseases
2019mcqeasy
Humans have acquired immune system that produces antibodies to neutralise pathogens. Still innate immune system is present at the time of birth because it
Official previous-year question
Held on 30 Apr 2019 · Verified 9 Jul 2026.
Options
- 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
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