Anorexia nervosa is considering a condition with an eating disorder that is characterized by abnormally low body weight and fear of gaining weight. This type of condition is often called anorexia.
In this case, 4. and 5. are correct answers because her friends did notice her low body weight and she is complaining about her body weight although that she does not eat anything during the day.
Dental amalgam is one of the most versatile restorative materials used in dentistry. It constitutes approximately 75% of all restorative materials used by dentists. It has served as a dental restoration for more than 165 years.