OVERVIEW OF THE IMMUNE SYSTEM
THE GOOD BAD AND UGLY OF THE IMMUNE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All of the following prevent pathogens from entering the body except ____
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red blood cells
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tears
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mucus
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skin
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Explanation:
Detailed explanation-1: -The first line of defense includes the skin, mucus, sweat, and tears. These defenses are the body’s barriers against threatening factors in the environment. Therefore, A is the correct answer. Red blood cells do not have the ability to fight pathogens.
There is 1 question to complete.