<h2><u>Answer:-</u></h2>

✯ Synapse is the gap between neurons that ensures that information travels in one direction only.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Therefore, the 2nd statement [B] is correct.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
<h3>
<u>Addit</u><u>ional</u><u> </u><u>Inf</u><u>ormation</u><u>:</u><u>-</u></h3>
A Synapse is a small gap at the end of a neuron that allows a signal to pass from one neuron to the next. Synapses are found where nerve cells connect with other nerve cells. Synapses are the key to the brain's function.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
The term synapse was first introduced in 1897 by Michael Foster in his "Textbook of Physiology" and derived from the Greek synapsis, meaning "conjunction."
I believe the correct answer is A
These viral particles, also known as virions, consist of two or three parts: the genetic material made from either DNA or RNA, long molecules that carry genetic information, a protein coat, called the capsid, which surrounds and protects the genetic material.
2.5g
10÷2=5
5÷2=2.5
everytime it completes a half life, you divide the number by two
I believe it's the body area examination, since a 'back' isn't and organ
Hope this helpss