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Innate immunity is
Adeveloped only after vaccination
Blimited to lymphocytes
Ctransferred by breastfeeding only
Dnon-specific defence present from birth
Answer & Solution
Correct answer: D. non-specific defence present from birth
1. Innate immunity is the body's first line of defence and is present from birth.
2. Components include physical barriers (skin), chemicals (mucus, gastric acid), phagocytes and inflammation.
3. It responds rapidly but without memory of specific antigens.
_Source: Maharashtra Balbharati Std XII Biology, Ch 9 "Human Health and Diseases" §9.3_
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