In biology, particularly cell biology, the term organelle is used to describe any one of a number of types of subcellular structures, historically identified through the use of some form of microscopy.
A few large organelles probably originated from endosymbiont bacteria:
... The racial makeup of the village is 73.63% White, 12.30% African American, 0.13% Native American, 6.05% Asian, 0.03% Pacific Islander, 4.94% from other races, and ...