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.
Answer:
yes
Explanation:
it is basic health class stuff
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Answer:
B
Explanation:
my dad told me to clean the whole basement, and he thinks I can do the whole thing by myself
Most infectious disease will be caused by one of four types of germs:
Bacteria – single-celled organisms that reproduce themselves, by themselves.
Virus – microorganisms that cannot reproduce themselves; they take over the cells they infect in order to reproduce and spread.