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 choices for this question can be found elsewhere and as follows:
<span>A) stability
B) heritability
C) variability
D) growth mind-set
</span>
I think the correct answer is option A. Males' mental ability scores show greater stability than females' mental ability scores. Hope this answers the question. Have a nice day.
<span>The answer is letter C.<span>
<span>In doing
something for someone else, your mind gets off of its own troubles. Helping
someone could serve as a diversion from stresses that you experience. In doing
this, you are immersing yourself in an environment where stressors are not present.
Aside from this, the experience makes you feel socialized and well accompanied
by the presence of another, where you can share and talk about other things
other than your problems. Socializing is one of the best ways to
distress from monotonous activities and is highly encouraged by experts to be
done on a regular basis.</span></span></span>
