Why are former socialist and command economies, like those of China, Cuba, and Russia, adopting more free-market practices?

Calculate the iq of a 20 year old who has the mental age of 25

Most sociologists agree that: a. culture is central in shaping gender roles, but only in preliterate societies. b. biological factors have some influence, but cultural factors are more important determinants of gender roles. c. biological factors are influential in determining gender roles, but only in industrial or complex societies. d. biological factors only explain differences between men and women with regard to aggression and disease. e. there is no difference between the influences of culture or biology on the development of gender roles, as they are unpredictable.

Which of the following items would serve as a primary source for a historian studiying the american civil war