Humans get there energy primarily from glucose I believe. We break down glucose to get ATP (Adenosine Triphosphate) which is then used to supply energy to our cells in order to function.
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.
It a comet that streaks through earth atmosphere. Cause more than 90 percent of meteorites are of rock, while the reminder consist wholly or partly of iron and nickel
The auricle(pinna) collects sound waves and directs them to the auditory canal.
hope it helps u.....
