When Celia tried to make use of old cans of paint by mixing them, she had expected to end up with a dramatic and bold hybrid color, but instead the mixture became darker and darker in color. The colors were lost because mixing paints results in ______.
A. wavelengths that are reflected but distorted to wavelengths outside the visual spectrum
B. more wavelengths being absorbed by the pigment molecules
C. more light being reflected from the mixture
D. additive effects
Answer: B
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Indicate whether the statement is true or false
Regarding the visual perception of babies, which of the following statements is FALSE?
a. Just hours after they are born, babies begin to prefer seeing their mother's face rather than a stranger's. b. At six months old, babies are able to recognize categories of objects that differ in shape or color. c. At age seven months, babies are able to see as well as their parents. d. At nine months old, babies are able to tell the difference between dogs and birds or other groups of animals.
You could create a stratified random sample by
a. randomly selecting participants from the names of everybody in your population. b. breaking the population into subgroups and randomly selecting from each subgroup. c. creating clusters of people in the population and selecting everybody from randomly chosen clusters. d. using chain-referral sampling.