Answer:
Homeostasis
Explanation:
It is what makes to where you are a warm enough temperature that's not to hot and not to cold. It tells all the cells in that one part of your body what to do keep it balanced. If you don't understand this just comment on my answer and say what you need to tell me so I know what to adjust so you can understand it.
Let the item be x
x=30.00
half of 30 is 15
add 15
get your answer 45.00
fill in x with the real number
The root would be the appropriate answer
I will try to answer at the best of my ability.
She may have Gastritis.
I hope this helps, and if it is wrong, I am truly sorry.