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Innate immunity is best described as:

ANon-specific defence present from birth
BSpecific defence developed over time
CAcquired only through vaccination
DLimited to antibodies and B-cells
Answer & Solution
Correct answer: A. Non-specific defence present from birth
INNATE IMMUNITY is non-specific (works against all pathogens), present from birth, and acts immediately. **Components:** skin/mucus barrier, neutrophils, macrophages, NK cells, complement. ACQUIRED immunity is specific and has memory.
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