In 1921, ________ began an extensive project to study gifted individuals

Which of the following statements is supported by research on childhood injuries?

A) U.S. children from advantaged families are at considerably greater risk for injury than children in Western Europe. B) Childhood injury deaths in developing nations are 1.5 times as high as those in developed countries. C) Safety devices, such as car seats and bicycle helmets, are readily available in developing nations, but they are rarely used by parents. D) Contrary to popular belief, girls are more likely to be injured than boys during play.

The central nervous system consists of the ________ and the ________

Fill in the blank with the appropriate word.