18. These stimulate growth and activity levels.

Complete the following sentence that describe the alimentary canal and its walls: the is composed mostly of connective tissue, nerves, and vessels, which to nourish surrounding tissues.

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.