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to fight diease.

if you want to get more details,then in a nutshell, it has the primary function of identification of and protection from infections and some diseases with use of the specialized cells, tissues, and organs that make up the immune system. Among other processes, it recognizes there is an invader and produces special cells called antibodies which can neutralize it (e.g., intruding pathogens, or foreign bodies or other substances that shouldn't be there). These invaders that can trigger an immune response are called antigens. The immune system produces the required cells to neutralize these potentially pathogenic organisms or substances.

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Kitty Schaden

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3y ago

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