Androgen and estrogen receptors in mammalian brains a. differ in concentration from one brain region to another b. are distributed similarly in males and females c. A hyphenated word counts as one word. For the following questions, either three of the statements are correct and one is false, or three are false and one is correct. Pick out the one odd statement, be it correct or false, and circle the respective letter. The evolution of races occurs gradually as part of a speciation process.
Races evolve through natural selection, sexual selection, or genetic drift.
Race formation is prevented by geographic barriers. Incest Taboo a. The incest taboo forbids marriages between parents and their children. The incest taboo prohibits marriages between siblings. Early childhood playmates tend to be sexually attracted to each other after puberty.