Question

how does the skin help in preventing the entry of germs in the body​

Answer 1

Disease: skin works to neutralise aggressors such as bacteria, viruses and pollution and prevent them for entering the body. UV rays: over-exposure to these harmful rays generates free radicals – aggressive molecules that cause cell damage. Pressure, blows and abrasion: skin recognises pain and alerts us to danger.

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by google..

Answer 2

The outer layer of the skin, epidermis forms a physical barrier to the entrance of microbes. The skin secretes some chemical substances call keratinocyte that secretes keratin, is very tough on the shin and it fight against microorganisms.

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