Which condition is marked by relatively normal language despite mental retardation in other ways?

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.

Ectopias are

a. the outer layers of brain regions. b. tests for learning diorders. c. misplaced brain cells. d. implicated in schizophrenia.