The functions of the integumentary system are protecting the body, excreting wastes, sensing temperature changes, and generating vitamins. protecting the body, excreting vitamins, sensing temperature changes, and generating wastes. generating heat for the body, excreting vitamins, regulating temperatures, and generating wastes. protecting the body, excreting wastes, regulating temperatures, and generating vitamins.

The answer would be the last option which is:
protecting the body
excreting wastes
regulating temperatures
generating vitamins

This includes the skin and its extremities acting to shield the body from different sorts of harm, for example, loss of water or scraped area from outside. The framework has numerous parts in homeostasis. All body frameworks work in an interconnected way to keep up the inside conditions fundamental to the capacity of the body, the skin has a vital activity of securing the body and goes about as the body's first line of protection against contamination, temperature change, and different difficulties to homeostasis.

Warm up, exercise, cool down