According to which theory of motivation are people motivated to achieve a psychological state in which their thoughts and behaviors agree?

Which part of the human nervous system is referred to by the moniker "rest and digest?"

a. The sympathetic nervous system b. The parasympathetic nervous system c. The peripheral nervous system d. The somatic nervous system

Among the following, which have the highest positive correlation between their IQs?

a. siblings of the same sex raised together b. parents and children c. identical twins raised apart d. grandparents and grandchildren