When a drug abuser tries to stop using drugs, he or she may experience painful , the physical reaction to not getting a drug.

Which of the following can be effective in preventing the onset of viral infection in humans? a) taking vitaminsb) getting vaccinatedc) taking antibioticsd) taking drugs that inhibit transcription

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.

Marco is considering leaving his wife. she yells at him, throws objects against the wall, hits the dog, and tells marco that he is ugly. which factor is an indication that marco should leave right away and seek ? marco’s wife is unwilling to change. marco may be in physical danger. marco’s wife is ignoring him. marco’s friends tell him that he should leave the relationship.