which part of the immune system is a physical barrier?\nskin\ntears\nmucus\nstomach acid
which part of the immune system is a physical barrier?\nskin\ntears\nmucus\nstomach acid
Answer
Brief Explanations:
The skin is a physical barrier of the immune - system. It forms a continuous layer that prevents pathogens from entering the body. Tears, mucus, and stomach acid are chemical or biochemical barriers. Tears contain lysozyme which can break down bacteria, mucus can trap pathogens, and stomach acid has a low pH that can kill many microorganisms.
Answer:
skin