Which of the following will keep your hair healthy by removing dirt and spreading oils from the roots to the ends? a. blow-drying b. dyeing or bleaching c. daily brushing d. sharing your comb or brush with your friends

Articular cartilage to shocks and prevents friction between parts.

Bulimia nervosa is characterized by a. a refusal to eat enough food to maintain normal, healthy body weight and/or the use of measures to produce severe weight loss. b. high fat intake and low level of physical activity. c. alternating binge eating and purging through vomiting, laxatives, or diuretics. d. normal food consumption interrupted by episodes of high consumption, resulting in obesity.

How harmful is it to smoke a pack of cigarettes a week?