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:
Heredity
Explanation:
He got it from his mother so it would be heredity because heredity is passing on of physical or mental characteristic from one generation to another.
Answer:
Ultimate frisbee
Explanation:
Lacrosse and ultimate frisbee/ultimate are played by<em> teams.</em> Both of them involve running a lot and trying to get the ball or the disc into the opponent's goal/end zone. The opponents try to catch the ball/disc in order to prevent the other team from scoring. Thus,<em> their movements are almost non-stop</em>. They require<em> a lot of stamina</em> from the team members. This makes them fun and very exciting. Due to their<em> similarity in nature</em>, both games require<em> similar movements and skills. </em>
