Social stimuli – that is, the effects of other people – are weak ____, unless they induce exercise or other vigorous activity

The structures of the Wolffian system are the precursors to the

a. male internal sex organs. b. ovaries. c. female internal sex organs. d. testes. e. penis and scrotum.

Researchers have used a number of theories to explain the topic of what attracts one person to another or two people to each other

Which of the following theories below best exemplifies the trade-off we often make with intimate partners such as a sense of humor offsetting a physical unattractive trait, for example, being overweight. a. filter theory b. socioemotional theory c. evolutionary theory d. exchange theory