Pituitary gland.
When you feel stress, the pituitary gland, at the base of the brain, increases its production of the hormone ACTH. This hormone tells the adrenal glands, found at the top of your kidneys, to increase their production of hormones. These stress hormones help you to concentrate, speed your reaction time, and boost your strength. Your hypothalamus also helps your body respond to stress.
A theory is an idea that has yet to be proven by experimentation. A law is a theory that has been proven correct.
Answer should be A system
Answer:Neon
Explanation:
Less amount of energy levels
The answer would be (A) Haploid Cells