Answer:
The skin keeps vital chemicals andnutrients in the body while providing a barrier against dangerous substances from entering the bodyand provides a shield from the harmful effects of ultraviolet radiation emitted by the sun
Explanation:
Your skin is the organ that comes into contact with the rest of the world. It holds body fluids in, preventing dehydration , and keeps harmful microbes out—without it, we would get infections. Your skin is full of nerve endings that help you feel things like heat, cold, and pain
