Aya is eight months old, and her mother pretends her baby food is a train in order to convince her to eat it. Aya's mother is using a rather creative form of

The reason why a person continues to be aroused for some time after an emergency has passed is because

a. the person is not certain whether the source of threat may return. b. the emergency reaction system never actually shuts down. c. epinephrine and norepinephrine may still be circulating in the bloodstream. d. the parasympathetic system does not operate consistently in the same fashion each and every time.

By age 6, children have achieved what percentage of their adult height?

A) 50% B) 70% C) 80% D) 90%