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The body has defenses to protect itself from diseases. What is a mechanical barrier to diseases?

A hairs in the nose
B plasma
C stomach acid
D white blood cells​

User Rae Lee
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1 Answer

10 votes

Answer:

A. Hairs in the nose

Step-by-step explanation:

Mechanical barriers — which include the skin , mucous membranes , and fluids such as tears and urine — physically block pathogens from entering the body. This includes the hairs in the nose.

User Alfred Fuller
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