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.
You are looking for vaccine.
Stress hormones affect your respiratory and cardiovascular systems. During the stress response, you breathe faster in an effort to distribute oxygen and blood quickly to your body core.
For one reason, when you go out to a restaurant and you enjoy your food, standardization ensures that every time you go to that restaurant and order the same thing , it should be as good as the first time.
In production lines, standardization ensures that things are being made the same way by anyone on the line.
Standardization decreases the chances of defects.
