Final answer:
Anorexia nervosa is an eating disorder characterized by starvation and excessive exercise, while bulimia nervosa involves binge eating and purging behaviors.
Step-by-step explanation:
Anorexia nervosa is an eating disorder characterized by maintaining a body weight well below average through starvation and excessive exercise. It is associated with a distorted body image, and individuals with anorexia often view themselves as overweight even though they are not. On the other hand, bulimia nervosa involves recurrent binge eating followed by purging behaviors such as vomiting, using laxatives, or excessive exercise. While anorexia is associated with starvation, bulimia is associated with binge eating.