the answer is a it can be used as an energy source by organisms
<em><u>Answer:</u></em>
<em><u>epipelagic zone</u></em>
<em><u>Explanation:</u></em>
<em><u>The epipelagic zone is home to most organisms because it is the sunlit upper layer of the ocean. it is also know as the photic or euphotic zone</u></em>
Here is my answer. The brain and the nervous system assists in times of limited body resources by sending signals to the brain the necessities or needs that the other body systems require in order to function properly. Hope this answers your question. Have a great day!
