Answer:
1.skin
skin appendages-hair,nail,sweat glands
subcutaneous tissue and deep fascia
Mucocutaneous junctions.
breast
2.The integumentary system consists of the skin, hair, nails, glands, and nerves. Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
3.tough outer protective layer, especially that of an animal or plant.
4.Skin has a lot of different functions. It is a stable but flexible outer covering that acts as barrier, protecting your body from harmful things in the outside world such as moisture, the cold and sun rays, as well as germs and toxic substances.
5. Urea, salts, and water are lost when we sweat. part of the nervous system, and located in the skin. These tiny sensors(including touch, pressure, temperature, and pain receptors) provide us with information about our external environment.
sry if its wrong☺