Long-term alcohol use changes in the brain, altering behavior without physically damaging the brain. a. water levels b. the electrical charge c. the ways neurons work d. all of the above

Which of the following accounts for someone who has had regular herpesvirus-mediated cold sore or genital sore flare-ups? a) re-infection by a closely related herpesvirus of a different strainb) re-infection by the same herpesvirus strainc) copies of the herpesvirus genome permanently maintained in host nucleid) copies of the herpesvirus genome permanently maintained in host cell cytoplasm