Answer:
A ball of dough kept moist by plastic wrap
Step-by-step explanation:
The human integumentary system includes skin and accessory structures. The epidermis of human skin has many layers all of which have keratinocytes along with other cell types. The keratinocytes are the cells with deposition of keratin. Keratin is a waterproof protein and prevents the loss of moisture from the surface of the body. The glands present in skin layers also serve to keep the body surface moist.
Among the given options, a ball of dough wrapped with plastic to prevent the loss of moisture represents the function of the human integumentary system to keep the body surface moist by preventing water loss.