Hi there!
An egg typically lives for five days after its release from the ovary. This is because the egg is waiting for a sperm to fertilize it.
Hope this helps!! :)
Answer:
I believe the answers are A, B, and C
Explanation:
Hope I'm right
It could possibly be a stroke.
Answer is B because it’s a covalent bond holding 2 atoms together
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.
