Which theory of color vision explains that each of the cones in the retina contains a different type of iodopsin that breaks down when struck by light, triggers action potentials, and sends neural messages to the brain?
a. opponent-process theory.
b. trichromatic theory.
c. three-opponent theory.
d. stage primary theory.
ANSWER: b
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Which of the following is the most advanced substage in Piaget's sensorimotor period?
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Saks' argument about dissociative identity disorder as an insanity defense is that
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