The integumentary system is an organ system consisting of the skin, hair, nails, exocrine glands, and sensory nerves. what is the most superficial layer of the skin that covers almost the entire body and protects deeper layers of skin?

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?