BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPH NODES
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Question
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Immunity that provides the 2nd line of defence.
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Innate Immunity
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Adaptive Immunty
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Active Immunity
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Passive Immunity
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Explanation:
Detailed explanation-1: -Pathogens that successfully cross the physical barriers are next encountered by the second line of defense. This innate immune response mostly involves immune cells and proteins to nonspecifically recognize and eliminate any pathogen that enters the body.
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