Answer:
c)nerve
Explanation:
1. <u>Nerve </u> is the basic unit of nervous system.
<h2>stay safe healthy and happy.<u>.</u><u>.</u></h2>
A barrier is used to block the things from coming in or going out. Hope this helps!
They probably get hurt easily because they are sensitive. another reason why could be that what you said hurt them or triggered something.
True. They do have those symptoms.