The age at which nutritional needs change at the end of puberty is A. 13

B. 16

C. 19

D. 21

Cancer is 100% preventable if you follow all the necessary healthy behaviors. true or false

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.

The is the only person who can authenticate the information in a patient's medical record. a. person who creates the data in the record b. medical facility that's caring for the patient c. attending physician d. attending nurse