There are actually several binary, mutually exclusive categories fiber optic cables can fall under. The most common is propagation mode, of which the two types are single mode and multimode.
Sure, if the cables break, it can fall.
Sexuality isn't defined by categories but a spectrum that people fall within.
nonfiction
no.
dono !
Fruit and vegetables
insulator or conductor
mierda
Odd and even.
Mentoplasties fall into two large categories: procedures that augment (increase) small or receding chins; and those that reduce large or protruding chins.
Fingerprint patterns are considered a discontinuous variation because they fall into distinct categories such as loops, arches, and whorls. While there can be variations within these categories, the overall pattern of fingerprints is not continuous but rather falls into discrete classifications.
fast and slow