What term describes an individual that lacks a clearly focus sexual drive?

Psychological aspects of pain perception can influence the release of the neurotransmitters called __________, the body's natural version of morphine

a) endorphins b) substance P c) serotonin d) acetylcholine

A newspaper story described a 26-year-old man who has an intense desire to change his physical sex. In the account, the reporter wrote that she asked a physician for the appropriate term to describe this man. What term was used?

a) transsexual b) transvestite c) homosexual d) pseudohermaphrodite