Athletes and different protein requirements (why are they higher? )

Females who lift weights are not going to develop large, bulky muscles because a. they have more muscle fibers than men b. they have thicker muscle fibers than men c. they have lower testosterone levels than men d. all of the above does not change length

Opium, methamphetamine, and cocaine are in the united states.

Which of the following is the correct definition for veins?