Question

Would you say skin does a better job on keeping things inside our bodies or keeping things outside our bodies? I thought of everything and I'm not sure what's a better answer.

Answer 1

Keeping things outside our body

Answer 2

I'd say that skin does a better job of keeping things outside our body. Because the skin's main purpose is to protect the body from things such as mechanical impacts, pressure, temperature variations, micro-organisms, radiation, and chemicals, all things that happen outside of ourselves, I think it would be better to argue that the skin does a better job keeping things out.