Which of the six principles established by the Johns Hopkins project encourages families to become advocates of high quality early childhood education in their communities? principle three
principle four
principle five
principle six

Do stimulants raise your bodies’ blood pressure, increase you breathing rate, increase your heart rate and raise your body temperature?

Many factors influence your mental and emotional health

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.