Humans have acquired immune system that produces antibodies to neutralize pathogens. Still innate im

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7.Human Health and Disease

easy

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

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

(NEET-2019)

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Standard 12

Biology

medium

medium

medium

(NEET-2017)

medium

(AIIMS-2009)

medium

(AIEEE-2004)