Which statement best describes a physical benefit of practicing abstinence?pick
abstinence eliminates the risk of pregnancy.
abstinence reduces the likelihood of alcohol abuse.
abstinence increases the likelihood of graduating.
abstinence allows people to establish more stable relationships.

How many teeth on primary dentition

American college students invented football by combining what two sports?

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.