Eukarya is one of the three domains of life (Encyclopedia of Life, 2012).  It is greatly differentiated from Archaea and Eubacteria mostly because of the complexity of the individual cells that make up an organism (Encyclopedia of Life, 2012).  Eukaryotic cells have an intricate cytoskeleton used for movement and structural support and possess a high level of compartmentalization (Encyclopedia of Life, 2012).  These compartments of membranes, called organelles, have designated functions that carry out cellular processes (Encyclopedia of Life, 2012).  Eukaryotic organisms can be unicellular or multicellular.  Fumonelix jonesiana is eukaryotic because its cells have compartmentalization and complexity.

To learn more, go back to classification, or continue on to Animalia.

A desert cactus, Stenocereus thurberi, is a eukaryotic organism.