In the event that sexual intercourse occurs without contraception, how might pregnancy be prevented?
A. By obtaining birth control pills
B. By douching
C. By hormonal methods
D. By using the "morning after pill

Does nicotine show up in a drug test when u pee in the cup

How could natural selection best be used to explain the evolution of the white fur of arctic fox

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.