D is the best answer :) good luck
(っ◕‿◕)っ Hey There!
Answer ➜ Skin serves many important functions including:
1. protecting the body from environmental factors such as bacteria, fungus, viruses, allergens, water, and chemicals
2. regulating body temperature by sweating and adjusting blood flow to the skin
3. synthesizing vitamin D
4. helping the body sense touch, pain, temperature, pressure, and position
5. providing some protection against the sun's harmful ultraviolet rays via the skin protein melanin
✧☺ Hope this Helps! ✧☺
Answer by JKismyhusbandbae: Repeated drug use may lead to drug tolerance which occurs when a user requires larger amounts of the drug to achieve the desired effect.
Answer:
When Miguel has a stressful day at work he is obviously under much stress and has not been able smile. So just looking at the mirror and smiling reminds him of how good it feels to smile. then makes him feel good
Explanation:
I put the explanation in the answer
nah but free points doeeeeeee