Question

what is the primary difference between anorexia nervosa and bulimia nervosa?
○ anorexia causes physical pain, whereas bulimia does not.
○ anorexia is a chronic condition, whereas bulimia is often short term.
○ anorexia typically develops in childhood or adolescence, whereas bulimia often develops in adulthood
○ people with anorexia are usually underweight, whereas people with bulimia are often at normal weight.

Explanation:

• Analyze Option 1: Both anorexia and bulimia can cause physical pain (e.g., gastrointestinal issues, dental problems in bulimia), so this is incorrect.
• Analyze Option 2: Both can be chronic; bulimia isn't typically short - term, so this is wrong.
• Analyze Option 3: Both often develop in adolescence/young adulthood, so this is incorrect.
• Analyze Option 4: Anorexia involves severe calorie restriction leading to underweight, while bulimia (with binge - purge cycles) often results in normal weight (or slightly above/below), which matches the primary difference in weight status.

Answer:

D. People with anorexia are usually underweight, whereas people with bulimia are often at normal weight.