The acid mantle is formed over the epidermis to protect the skin from microbes( dirt, grime, bacteria or any foreign debris) This acid mantle is composed of oil from your sebaceous glands and water from the sudoriferous glands. and when oil and water mixed at the top of the skin, its a barrier protector.
Skin is the outer covering of the body that protects against microbes and germs.
white blood cells easy as pie
Microbes do often get into cuts, but at some point the cut will get sealed by clotting blood, or even by hardening lymph if there isn't enough blood. You can also put on a dressing (such as a band-aid) to keep out microbes.
skin is so important because it keeps your internal organs safe and makes sure the organs dont gett to hot or to cold
Liquid outer core
Yes, it stops the flow of germs in the air from your mouth.
The outer circle of a football field is the border of the field. When the players step outside of the border, the play stops.
Yes, it is. Microbes can get in through any hole in your body, and your ear holes are one of them. The ear wax is a sticky substance that stops microbes from infecting your ears and letting your body get infected by microbes. Further answer I personally don't see it as part of the immune system. Defence system - yes, immune - no. The immune system fights bacteria and other foreign bodies by developing anti-bodies which kill them, generally in the blood stream. Not quite the same thing as stopping stuff getting into your ear in the first place.
Yes
Not unless it bumps into something else that stops it.
it stops you from getting wet
yes