Examlex
What is a system developed by marketers to help measure the return on investment (ROI)?
Eardrum
A thin membrane in the ear that vibrates in response to sound waves, playing a key role in hearing.
Hair Cells
Sensory cells located in the inner ear that are responsible for converting sound vibrations into neural signals.
Decibel
A unit of measurement for the intensity of sound, indicating the level of loudness.
Rock Band
A group of musicians specializing in rock music, typically consisting of electric guitars, drums, bass, and sometimes keyboards and vocals.
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