Most developmentalists agree that maturation of the part of the brain called the ______ is a factor in the development of an infant's social smile and first laughter, and it is directly connected to emotional self-regulation

Comparative psychology emerged as a response to which of these theories?

a. Hermann Helmholtz's theory of vision b. Sigmund Freud's theory of the unconscious mind c. Noam Chomsky's theory of language d. Charles Darwin's theory of evolution

Dose consists of a ratio of the amount of drug per ____________.

a. an organism’s body weight b. person treated c. the amount needed d. amount administered