According to the opponent-process theory of color vision, the correct pairings of opposite colors are
a. red versus green and blue versus yellow.
b. black versus gray and white versus colored.
c. blue versus red and green versus yellow.
d. blue versus green and red versus yellow.
e. grey versus black and green versus blue.
a. red versus green and blue versus yellow
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For a perfectly symmetrical distribution with a median of 30, what is the value of the mean?
a. 30 b. Greater than 30 c. Less than 30 d. Cannot be determined from the information given
One recent survey revealed that ____ percent of American adolescents log on to the Internet daily
a. 10 b. 25 c. 50 d. more than 60
Imagine you are playing in a championship basketball game
You have just taken a fall while trying to get a rebound and your ankle begins to hurt. Moments later, you notice the pain in your ankle seems to have subsided. You attribute this pain relief to a release of _____, which is a type of neurotransmitter that relieves pain. Answer: endorphins
Human beings are generally prewired to have a dislike of bitter flavors, because evolutionary theory suggests that many naturally growing poisonous substances have an initial bitter flavor. This is an example of taste-__________ learning
a. affected b. disdain c. disgust d. aversion