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oee [108]
4 years ago
10

Desribe first line of defense in the immune system

Health
1 answer:
inysia [295]4 years ago
5 0
The first line of defense in the immune system is the skin and mucous membranes. They as a physical barrier preventing the entrance of microbes. However, this line of defense is non-specific but is of importance as well. The surfaces of the body are covered by microbes as well called the normal body flora. These microbes protect their host from foreign microbes.
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