OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a component of the first line of defense?
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Skin
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Natural killer cells
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Fever
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Inflammation
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Explanation:
Detailed explanation-1: -Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens.
Detailed explanation-2: -Epithelial tissue, or skin, is an animal’s first line of defense against environmental challenges. It covers all exterior and interior surfaces of the body, like its cavities, tubes, organs and blood vessels, including the respiratory, reproductive, urogenital and gastrointestinal tracts.
There is 1 question to complete.