Yeah, the wikipedia entry is actually a good example.. it starts with > A mitochondrion (pl. mitochondria) is an organelle found in the cells of most eukaryote

Yeah, the wikipedia entry is actually a good example.. it starts with > A mitochondrion (pl. mitochondria) is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi. and the "classification" is introduced with > There are two hypotheses about the origin of mitochondria: endosymbiotic and autogenous.