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Immunity

  • Definition: Ability of tissues in an organism to recognize and to defend against nonself invaders. Innate immunity is a mechanism of defense that does not depend on prior exposure to the invader; acquired immunity is specific to a nonself material, requires time for development, and occurs more quickly and vigorously on secondary response.

    Source: Hickman, C.P., et al. 2011. Integrated Principles of Zoology. Fifteenth Edition. McGraw-Hill Higher Education.

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