Kaylin is at a concert where the singer held a really high note for a few seconds. Kaylin could tell it was a high note versus a low note as a result of the _______ the sound wave produced.
A. amplitude of
B. noise in
C. timbre of
D. frequency of
Answer: D
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Our perception of the brightness of a color is affected mainly by
a. the wavelength of light waves. b. the amplitude of light waves. c. the purity of light waves. d. the saturation of light waves.
If we want to use the chi-square test to test the difference between two proportions, we should
a. convert the proportions to means. b. convert the proportions to frequencies. c. run a z test. d. either b or c
For a communication system to involve the use of true language, the following must be demonstrated:
a. semanticity, plurality and displacement. b. semanticity, infinite creativity and displacement. c. serendipity, infinite creativity and displacement. d. semanticity, infinite duplicity and displacement.
What determines the type of process used to terminate chemical communication at the synapse?
A. the type of neurotransmitter involved B. the quantity of neurotransmitter involved C. the physical characteristics of the postsynaptic cell, such as being unipolar, bipolar, or multipolar D. whether the neurotransmitter molecules interacted with metabotropic or ionotropic receptors