Answer to Question 1
Answer: Women gathered food and men hunted in early societies in part because it was easier for women to combine gathering with pregnancy, breastfeeding, and childcare. These roles became ingrained into society and were culturally encouraged in children from a young ageboys developed the skills they would need to hunt and girls developed the skills they would need to gather and to care for babies.
Answer to Question 2
Answer: A gene, testis-determining factor, determines sex by directing early fetal development of the testes, which then begin producing male hormones such as testosterone. In the womb, the boy's brain is shaped by testosterone. This continues after birth, as testosterone may fuel a greater tendency toward aggression and dominance, and toward an interest in things versus people. Boys get another testosterone boost during puberty.
The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
Cross-sectional data showing that the amount of effort spent on personal health care increases with
In the box on upward social mobility on page 82, we discussed how Latinos face a similar situation. ...
In Hindu marriages, the roles of husband and wife are firmly established. Neither this woman, whom I ...
Economic and Social Development
Teen eating habits are often influenced by peers and social settings