OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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First-line defence mechanisms in humans include
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development of fever.
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the action of phagocytes.
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the use of antibiotics.
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the presence of cilia on some cells.
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Explanation:
Detailed explanation-1: -Cilia and sebum on the skin are part of the mechanical barriers, which is the first line of defense.
Detailed explanation-2: -Cilia propel a liquid layer of mucus that covers the airways. The mucus layer traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.
There is 1 question to complete.