What term do developmentalists use to refer to the knowledge and experience in a specific domain?

In all but a small percentage of societies, the predominant form of marriage practiced by both men and women is

a. monogamy b. polygyny c. polyandry d. polygamy

Which of the following statements is true based on cross-species comparisons of female sexual structures?

A) The hymen is usually found in females in most species of mammal and in many birds. B) The hymen is found only in the great apes and in humans. C) The hymen is found in most mammals, but has no known function. D) The hymen is not present in other primates and has no known function.