What effects do alcohol have on the brain?

Calvin is a 12-year-old boy. due to pressure from his friends, he has started consuming certain toxic materials that are addictive and harmful. calvin is a victim of what type of abuse? a. sexual b. substance c. physical d. emotional

Christopher came down with chicken pox after spending time in his child’s day care. the chicken pox represents what link in the chain of transmission in this scenario?

Why would one lymph node in the neck be swollen and not the other? what causes them to swell?