I think the person got some "fats" in there serving and havent burn it through exercising so its stored in the body as body fat which will make the person gain weight.
Answer:
going to the bathroom and not washing your hands and
Explanation:
not washing your hands before dinner.
Using research on a specific more advanced position, may be done o the internet. However; before doing that, I would go to human resources and find out more on career advancement. Companies usually have a training department also. Since advanced positions may include a requirement for education and skills, human resources can also assist you.
There are 6 functions of the integumentary system: Protection, Absorption, Excretion, Secretion, Regulation, and Sensation. Hope this helps!