Most natural sounds in the real world
a. have the same amplitude but different frequencies.
b. are mixtures rather than pure tones.
c. consist of frequencies that are narrow in range, but vary greatly in amplitude.
d. usually have only one frequency and one amplitude.
e. combine amplitudes and frequencies in basically the same way.
b. are mixtures rather than pure tones.
You might also like to view...
Janice is showing signs of dementia. In addition, she experiences tremors in her hands and head. When
she is given a medication that increases her dopamine level, her tremors stop, but they return as soon as the medication wears off. Janice A) has Alzheimer dementia B) has Parkinson disease C) has Huntington disease D) is malingering.
The key characteristic of a malignant tumor is that such a tumor
a. does not require surgery. b. cannot cause brain damage. c. has a distinct border. d. spreads rapidly through infiltration of adjacent tissue. e. can give off cancerous cells that in turn reach distant sites.