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Question
Give one example of each of the following:
(c) Mechanical barrier that prevents the entry of germs into the body.
(c) Mechanical barrier that prevents the entry of germs into the body.
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Solution
Answer: Skin
Skin is the outermost tough layer of our body. It is made up of keratin that is almost impermeable to germs.
Skin is the outermost tough layer of our body. It is made up of keratin that is almost impermeable to germs.
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