The answer is C.
hope i helped!
good luck on your homework
You’ll get muscle bound if you start lifting weights.
You are too old for weight lifting.
Lifting weights will hurt my joints.
write out the poison control center telephone number and place it by each telephone in your home the reason you should have the poison control number posted is if are dog gets to the pills or drugs he shouldn't and that whoever is home knows who to call so he doesn't die
Explanation:
this seemed the best because a it might take to long to find the number in a phone book the option is wrong because they should be high up and should have stickers already on it
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.
Menstruation? Idk if that is right, but it sounds like someone started their period.
