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:
... Native American, 1.45% Asian, 0.02% Pacific Islander, 3.86% from other races, and 3.17% from two or more races. 16.24% of the population are Hispanic or Latino of any ...