<u>Answer</u>:
The activation of parasympathetic nervous system results in the relaxation of the GI tract.
<u>Explanation</u>:
Parasympathetic nervous system helps the brain to understand that the danger is now over and it can relax. Hormones named corticotropin and adrenocorticotropin which are realising the body to start working against danger is now going to be relaxed with relaxation of parasympathetic nervous system. This is how sympathetic and parasympathetic nervous system works together co-ordinate together in fight or flight mechanism of the nervous system.
The body fight or flight response is under the control of sympathetic nervous system, which is one part of autonomic nervous system. The another part is parasympathetic nervous system that relaxes and slow down the body's response.
The cell wall is the protective, semi-permeable outer layer of a plant cell. A major function of the cell wall is to give the cell strength and structure, and to filter molecules that pass in and out of the cell. A cell is the smallest part of an organism that still contains that organism's elements.
TRUE.THEY DO NOT COTAIN THOSE THINGS.
Assuming this is the question that has the four different possible answers, the answer is in fact B: The mouth. Otherwise, I would just say that <em>Any area with said decreased light penetration is going to have less diversity of plant life.</em>
<em />
Hope this helps.
Good luck and have a great day!
Also, pls give me brainliest ;3