In 1910, what German microbiologist developed an arsenic-containing chemical that destroyed bacteria that caused syphilis and prevented paresis?

Adults often view sex in emerging adulthood as

a. "problem behavior." b. "a normal part of life." c. "saturating American life." d. none of these answers are correct.

The words of William Congreve (1697), "Music has charms to soothe a savage breast," best reflect

a. the potential cathartic effect of music. b. sexual imagery embedded in lyrics. c. difficulties making a living as a musician. d. it is virtually impossible for negative effects to come from music.