Nonpathogenic microorganisms that live on the skin and in the urinary, gastrointestinal, and respiratory tracts are called?

This migraine wont go away and i dont feel safe taking any more medicine for the next few hours

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

Which of these pieces of safety equipment should be worn when operating a chainsaw