Final answer:
Tonotopy in the auditory system refers to the processing of different frequencies based on spatial arrangement. An example of tonotopy is that low frequencies are processed at the apex of the basilar membrane, and high frequencies are processed at the base.
Step-by-step explanation:
The processing of different frequencies based on spatial arrangement in the auditory system is referred to as tonotopy. An example of tonotopy in the auditory system is that low frequencies are processed at the apex of the basilar membrane, while high frequencies are processed at the base of the basilar membrane.