Question

What are the body's natural barriers against pathogens?

Choose the three correct answers.


skin


mucous membranes


nails


stomach acid

Answer 1

skin
mucous membranes
stomach acid

Answer 2

Skin, mucous membranes, acid skin

Step-by-step explanation:

Natural barriers and the immune system defend the body against organisms that can cause infection. Natural barriers include the skin, mucous membranes etc. The normal flow of urine washes out microorganisms that enter the urinary tract.

I hope this helps