assignment: research skin,hair, and nail
Answer (1)
It consists of three layers: the epidermis (outer layer), dermis (middle layer), and hypodermis (inner layer). The skin acts as a barrier against bacteria and viruses, prevents water loss, and contains sensory receptors for touch, pain, and temperature. It also helps in temperature regulation through sweating and blood vessel changes.HairAnswer:Hair is made of keratin and grows from follicles in the skin, providing protection and sensory functions.
