A procedure used to teach a whole behavior by first training its parts is called

In the United States, ____% of boys and ____% of girls between 5–18 years of age are involved in organized sports

a. 25; 75 b. 52; 66 c. 66; 52 d. 75; 25

Currently, people with Huntington's disease live for an average of __________ after the first appearance of symptoms

A) 12 days B) 8 weeks C) 9 months D) 2 years E) 15 years