Humans emerged as a species about _________ years ago
a. 2 billion c. 2 million
b. 20 million d. 200,000
C
You might also like to view...
How many axons can a cell have?
a. Only one b. Half as many as its number of dendrites c. As many as the number of dendrites d. No limit
Karen believed that her local senator was an honest, law-biding citizen. When he was indicted on charges of insider trading she told all her friends there had been a mistake and he would soon be cleared. Finally, the senator confessed to the crimes and served time in prison. Through all of this, Karen exhibited a(n) ____________________ when she kept insisting he had been framed and was taking
the blame to protect someone else. Fill in the blank(s) with correct word
What causal inference do subjects make after experience with a zero contingency?
a. none—there is nothing to learna b. the CS predicts the absence of the US c. the CS is irrelevant to the US d. the US predicts the absence of the CS
Celia, who is a college student, has always thought of herself as an environmental activist. Recently, she "inherited" a gas-guzzling car from her parents, which she has been driving around campus. To reduce the cognitive dissonance that she feels from these clashing images of herself, the environmental activist and the gas-guzzling car owner, she might say that her "schedule has become too
hectic to spend time biking or riding the bus and besides it has become too expensive to ride the bus," which illustrates the strategy of a. changing her attitude. b. changing the importance of the dissonant thoughts. c. adding consonant thoughts. d. reducing the amount of her perceived choice.