Question

how does skin play important role in first line of Defence​

Answer 1

Answer:

skin protect us from outer pollutants disease

Answer 2

Answer:

Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens. You have beneficial bacteria growing on your skin, in your bowel and other places in the body (such as the mouth and the gut) that stop other harmful bacteria from taking over