which part of the immune system is a physical barrier?\no skin\no tears\no mucus\no stomach acid
which part of the immune system is a physical barrier?\no skin\no tears\no mucus\no stomach acid
Answer
Brief Explanations:
The skin is a physical barrier of the immune - system. It is a continuous layer that prevents pathogens from entering the body. Tears, mucus, and stomach acid are also part of the immune system but are chemical or biochemical barriers. Tears contain lysozyme, mucus can trap pathogens and has antibacterial properties, and stomach acid has a low pH to kill ingested pathogens.
Answer:
skin