The answer to your question is A
Answer:
Anorexia Nervosa
An eating disorder characterized by abnormally low body weight.
Bulimia Nervosa
Eating disorder characterized by binge eating, followed by methods to avoid weight gain.
Binge eating disorder
A disorder involving frequent consumption of large amounts of food without stopping.
Pica
An eating disorder characterized by a tendency to eat substances that provide no nutritive value such as soil, chalk, hair or paper.
Explanation:
If they can learn more about how the human body ages,why some people live longer than others then perhaps they could apply these different facts in order to eventually discover our lifespan.
Development changes in different stages
