Prescription drugs usually have a relatively
a. low potential for harmb. high potential for abusec. high potential for harm and abused. a and b

What would you call 2-1-1 for? a. product safety info b. after a car crash c. referral to suicide counseling d. after a home break in

This is one popular brand of exercise machine

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.