Which of the following strategies for enhancing the intake of healthful foods is appropriate foran adolescent?A - Encouraging the adolescent to consume snack foods from the grains food groupB - Permitting the adolescent to skip breakfast to enhance appetite at later mealsC - Making healthful food choices more convenient and available for the adolescentD - Allowing the adolescent complete autonomy in making food choices

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.