THE HUMAN IMMUNE SYSTEM
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the body’s first line of defense against infection by foreign organisms?
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antibodies
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lymph nodes
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white blood cells
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the skin
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Explanation:
Detailed explanation-1: -The innate immune system is the body’s first line of defense against germs entering the body. It responds in the same way to all germs and foreign substances, which is why it is sometimes referred to as the “nonspecific” immune system.
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