An instructor tells his class to close their eyes and count the number of windows in their house or apartment. In order to do this, the students must form internal __________ images

Ergs are

A) dynamic traits. B) influenced by heredity. C) comparable to animal instincts. D) all of the above

In the United States, about ____ percent of young adults ages 25 to 44 consume alcohol occasionally

a. 90 b. 65 c. 30 d. 15