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:
Tidal volume (TV) measures the amount of air that is inspired and expired during a normal breath
Explanation:
mark as brainliest
Answer:
the last three are just ugh but i think it would be the first one because they are like actually touching you
Aerobic energy comes from the burning of carbohydrates.
Answer: depends if your trying to turn weight into muscle if so eat lots of healthy food everyday and workout 5-6 days a week
Explanation: done this process many times
