Which of the following is a preschool program designed to enhance the cognitive development and academic skills of economically disadvantaged children?

The drawing known as "The wife and the mother-in-law" is an example of

A) a reversible figure B) the Muller-Lyer illusion C) depth perception D) texture gradient

Individuals whose __________ systems function more efficiently appear to have an edge in intellectual skills

A) endocrine B) nervous C) circulatory D) cardiovascular