Alcoholics Anonymous provides a support system for those dealing with alcoholism because it allows people who have the same issue who can relate to each other motivate each other to stay sober. Hope this helps! :)
Answer:
the study of the structure, reaction, and composition of different kinds of substances
Explanation:

-are more likely to develop post traumatic stress disorder
W is the point where blood filtration starts in a nephron which makes option A the most appropriate choice.
<h3>What is a Nephron?</h3>
This is defined as the microscopic structural and functional unit of the kidney.
The renal artery carries blood from your heart to your kidneys during which the process of blood filtration starts immediately.
Read more about Nephron here brainly.com/question/242658