Class 12 NEET Biology Human Health and Diseases Questions Part 2

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Question : 32 of 43

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

[NEET OD 2019]

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.

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