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:
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Monty Woolley
Monty Woolley (August 17, 1888 - May 6, 1963) was an American actor. Born Edgar Montillion Wooley in New York City, Woolley was a ...