Changes in color and smell.
Answer:
Adenosine.
Explanation:
Adenosine is a neurotransmitter that is created in the brain and when it binds to the adenosine receptors, it slows down nerve activity and it creates a sensation of drowsiness.
<u>Caffeine</u> looks like adenosine to the receptors, therefore, when we have caffeine, <u>it binds to these receptors and there is no room left for the adenosine to bind</u>. However, the caffeine doesn't slow down nerve activity but, in the contrary, it speeds it up.
Therefore we can tell that caffeine blocks the receptors for the adenosine thus promoting wakefulness.
The main reason Americans are eager for new goods and servises is because of economic growth.
Answer:
DUI driving stands for Drinking Under Influence. It means the driver is driving under the influence of alchol or drugs. Someone DUI can result in serious consequences.
Explanation:
I would probably say C. economic class
