<u>Answer:
</u>
The substance that Rayna has discovered is most probably a neurohormone.
<u>Explanation:
</u>
- The special regulatory substance that is produced by the brain in response to a specific sensation or an internal process happening within the body is referred to as a neurohormone.
- Such hormones travel to various parts of our body through the medium of blood and initiate internal actions that bring substantial temporary changes in the functioning of the organs.
- The secretion of hormones mostly happens as a result of an external stimulus.
The theory that is associated with the outcomes that show the difference between older people and younger people's responses and income levels on attitudes about policing in a community inhabited by people of one race and ethnicity is <u>racial profiling</u>.
<h3>What is racial profiling?</h3>
Racial profiling is a stereotypical assumption or theory based on race, color, ethnicity, age, etc. Racial profiling differs from criminal profiling.
Criminal profiling concentrates on the actual commission of crimes.
Thus, the theory that is associated with the outcomes that show the difference between older people and younger people's responses and income levels on attitudes about policing in a community inhabited by people of one race and ethnicity is <u>racial profiling</u>.
Learn more about racial profiling in community policing at brainly.com/question/4527841