Carelton is a specialist in kinesics. Thus, his area of interest is

In Chess and Thomas's (1984) longitudinal study, they classified the infants into three categories and then followed these infants as they developed into adulthood. What did they find?

a. Temperament in infancy predicted later development in some respects. b. Infant temperament was only predictive of the later development of middle- and high- socioeconomic status individuals. c. Infant temperament was only predictive of the later development of the 35 percent who were not able to be classified into one of the three groups. d. It was impossible to predict later development from infant temperament.

During cell division in a zygote, one cell divides and forms a heart cell and another cell divides and forms a brain cell. Which of the following best describes the process that is taking place?

A) differentiation B) implantation C) fertilization D) ovulation