What is responsible for the unusual ecosystem of the Ethiopian Highlands? (Select all that apply.) a. The Highlands consist of constantly erupting volcanoes.
b. The Highlands formed by uplifting volcanic activity.
c. The Highlands experience large amounts of average yearly rainfall.
d. The Highlands experience small amounts of average yearly rainfall

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.