You are conducting a PET study. You ask the participant to describe his first car. What area of the brain will be most active when he describes the color of his car?

Biologist Zing Yang Kuo (1961) demonstrated that a cat who had been raised from birth with a rat in the same cage would attack neither that specific rat nor other rats. This research suggests that

A) aggression is species specific. B) aggressive instincts can be modified through experience. C) conflict over scarce resources contributes to aggression. D) aggression is an entirely learned response. E) aggressive behaviour is not instinctive.

According to the introductory discussion of bilingualism,

a. more than half of the people in the world are at least partially bilingual. b. technically, a multilingual is someone who speaks two different languages that have different historical origins. c. a speaker's first language is the language that she or he currently speaks most fluently. d. the majority of the world's bilinguals learned their second language during high school.