When the sperm and an ovum are joined, a single new cell is formed. This process is known as conception, or

A baby who is low birthweight weighs between 6 and 7 pounds

: Indicate whether this statement is true or false.

A psychologist identifies herself as a psychodynamic personality theorist. She is most likely to believe that

a. one's personality is an expression of one's past reinforcement history. b. inner forces shape personality and motivate behavior. c. understanding the self-concept is crucial to understanding personality. d. people are constantly striving to realize their potential.