A eukaryote is an organism with a complex cell or cells, in which the genetic material is organized into a membrane-bound nucleus or nuclei.

Eukaryotes (also spelled "eucaryotes") comprise animals, plants, and fungi—which are mostly multicellular - as well as various other groups that are collectively classified as protists (many of which are unicellular).

In contrast, prokaryotes are organisms, such as bacteria and archaea, that lack nuclei and other complex cell structures.

Eukaryotes share a common origin, and are often treated formally as a superkingdom, empire, or domain.

In the domain system, eukaryotes have more in common with archaean prokaryotes than bacterial prokaryotes..

For more information about the topic Eukaryote, read the full article at Wikipedia.org, or see the following related articles:

Prokaryote — Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, ...  > read more

Organelle — In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell. Eukaryotes ...  > read more

Plant cell — There are three major classes of plant cells that can then differentiate to form the tissue structures of roots, stems, and leaves. (The three ...  > read more

Protist — Protists are a heterogeneous group of living things, comprising those eukaryotes that are neither animals, plants, nor fungi. They are usually ...  > read more

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