Parasympathetic neurons use acetylcholine as their neurotransmitter

Peer groups are

A. group situations in which members are treated as equals B. highly modifiable as the group's interests and needs change C. strongly influential in the development of movement skills of adolescents but not of young children D. all of the selections are correct

Jack suffered a brain injury as a result of hitting his head while waterskiing. One of the problems that developed was that Jack could not pronounce certain words correctly for a long period of time until he had extensive speech therapy. Now Jack can spea

A) adaptology B) stagnation C) plasticity D) reflex arc