What is at the end of every beginning the beggining of every end the middle of every dream

The majority of early psychological research reflected the a. differences among males and females b. concerns and interests of minorities c. differences among various cultures d. concerns and interests of white males select the best answer from the choices provided a b c d

Which of these contraceptive methods would be most beneficial for a female who wishes to avoid side effects or surgery?

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.