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Chapter 21: The Immune System: Innate and Adaptive Body DefensesFor this assignment, please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors.Bodydefense:Any agent that causes disease is called a pathogenThe body has two lines of defense against disease causing agents: (1) Non-specific (innate) defenses that defend against a wide variety of pathogens and (2) Immunity (adaptive or specific defense) that defends against a very specific target. Non-specific (innate) defense:Tables 21.1 and 21.2 on page 770 of the textbook presents an overview of nonspecific defenses of the body.Describe how the following types of nonspecific defenses protect the body..Mechanical barriers-Mucous membranes-