alleryInnate immunity is a type of
AAcquired immunity that develops after exposure to a pathogen
BNon-specific defence present from birth
CPassive immunity received through mother's milk
DImmunity created by vaccination only
Answer & Solution
Correct answer: B. Non-specific defence present from birth
1. Innate immunity is present in an individual from birth.
2. It provides a non-specific barrier through skin, mucus, phagocytes and interferons.
3. Acquired (adaptive) immunity develops after exposure and shows memory.
4. Passive immunity comes from ready-made antibodies (mother's milk, injections).
_Source: syllabus Biology, Ch 7 "Human Health and Disease", §7.2_
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