The skin has a thick layer of _________ that stops most pathogens getting into it.
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Answer:
dead cells
Explanation:
Physical and chemical barriers form the first line of defense when the body is invaded. The skin has thick layer of dead cells in the epidermis which provides a physical barrier. Periodic shedding of the epidermis removes microbes. The mucous membranes produce mucus that trap microbes.
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Epidermis
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