Jill is an elite gymnast. She is 16 years old and knows that this upcoming year will be her last shot to make the U. S. team to compete in the world championship. Her coaches have been pressuring her to keep her weight down and Jill has begun restricting her calories to less than 1,200 per day. On days during which she eats more than 1,200 calories, she takes a laxative to help purge the extra energy. Her weight has stayed low but lately she has stopped menstruating. Last week she fell off the balance beam and fractured her ankle. A bone density study showed that she is at risk for developing osteoporosis. Which of the following most accurately describes Jill's condition? A. Binge-eating disorder.
B. Anorexia nervosa.
C. Female athlete triad.
D. Bulimia nervosa.

Samuel is a 63-year-old single man who works full time in a food processing plant. he has a history of esophageal cancer, which was treated successfully with anti-cancer drugs and surgery four years ago. his weight had been stable at 135 pounds until 6 months ago. since then, he has experienced an involuntary weight loss of 10 pounds. he complains of a poor appetite and being overly weak, tired, and irritable. he also complains of cracks at the corners of his mouth and a chronic sore throat, which concerns him, given his cancer history. his usual diet is fairly consistent. he states that he rarely eats breakfast because he starts work at 6 a.m. he eats two deli meat sandwiches, "usually pastrami or salami," and a soda at 10 a.m., and may eat a candy bar in the afternoon when he gets off work. he often prepares and eats a frozen dinner or pizza at home in the evening and routinely drinks "about four or five beers" before going to bed. occasionally, he cooks roast and mashed potatoes for dinner and may have cereal with milk for a snack before bed. he rarely eats vegetables or fruit. 1. considering samuel's alcohol consumption, which b vitamin may he be deficient in? a. pantothenic acid b. niacin c. riboflavin d. biotin e. thiamin

Which of the following can be effective in preventing the onset of viral infection in humans? a) taking vitaminsb) getting vaccinatedc) taking antibioticsd) taking drugs that inhibit transcription

Social sciences are the observable facts or events that involve human society. select the best answer from the choices provided t f