Chemically alter the make-up of nutrients, changing them into a form that can be readily used by cells.

enzymes
amino acids
carbohydrates
nutrients

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.

Acharacteristic associated with good social health is the ability to: a. get along well with others b. recognize your achievements c. do daily tasks without getting tired d. learn from your mistakes

The best time to go swimming is: a. directly after eating b. when you are feeling rested and energetic c. when you are feeling tired and sluggish d. a half hour after eating