Answer:
Option 2, Arousal
Explanation:
Reticular activating system (RAS) or the ascending arousal system consists of nuclei and tracts and is involved in the regulation of wakefulness, sleep aspects and arousal.
RAS is located in the mesopons and interacts with the basal forebrainand thalamocortical systems. It activates the cerebral cortex and thereby maintain the consiusness. The neurons located at the pontomesencephalic junctionparticipates in this activity of arousal.
Hence, option 2 is correct
Ethics in research facilitates accountability of researchers and their research to the public especially in their responsibility to uphold societal values and morals. Ethics also create foundation for collaborative work between researchers by enhancing trust, respect and fairness in the field
I think A) but not really a lot of info
The job of the nucleus is to tell the other parts of the cell what to do.