\[ **BT: [[life]]** ] --- # eukaryote Eukaryotes (members of the **Eukaryota** domain) are organisms whose cells have a membrane-bound nucleus.[^1] All [[animals]], [[plants]], [[fungi]], seaweed, and many unicellular organisms are eukaryotes.[^2] --- ## classification of eukaryotes | EUKARYOTA | Colloquial | Notes | | ------------------------------ | ------------------------ | --------------------------------------------------------------------------------------- | | [[animals\|Animalia (Domain)]] | [[animals]] | | | [[fungi\|Fungi (Domain)]] | [[fungi]] | | | [[plants\|Plantae (Domain)]] | [[plants]] | | | Protista | protists (incl. seaweed) | any eukaryotic organism which is NOT an animal, land plant, or fungus is a protist.[^3] | [^4] --- ## characteristics of eukaryotes ### sexual reproduction [[Sexual reproduction is nearly universal for eukaryotes.]][^5] - see also: [[life#reproduction]] --- ## predators, parasites, and parasitoids [[Predators and parasitoids help keep plant-eating insects in check.]][^6] - **NT:** [[hypocrealeans#Ophiocordyceps unilateralis (zombie-ant fungus)|zombie-ant fungus]] [^1]: ‘Eukaryote’, Wikipedia, last edited 12 January 2026, 02:26 (UTC), https://en.wikipedia.org/wiki/Eukaryote. [^2]: ‘Eukaryote’, Wikipedia, last edited 7 January 2026, 16:15 (UTC), https://en.wikipedia.org/wiki/Eukaryote. [^3]: ‘Protist’, Wikipedia, last edited 7 January 2026, 16:15 (UTC), https://en.wikipedia.org/wiki/Protist. [^4]: ‘Eukaryote’, Wikipedia, last edited 7 January 2026, 16:15 (UTC), https://en.wikipedia.org/wiki/Eukaryote; ‘Protist’, Wikipedia, last edited 7 January 2026, 16:15 (UTC), https://en.wikipedia.org/wiki/Protist. [^5]: Doris Bachtrog et al., ‘[[Bachtrog et al., ‘Sex Determination’, 2014|Sex Determination: Why So Many Ways of Doing It?]]’, *PLOS Biology*, vol. 12, no. 7 (2014), p. 1, https://doi.org/10.1371/journal.pbio.1001899. [^6]: ‘[[Australian Museum, ‘Predators, Parasites and Parasitoids’, 2022|Predators, Parasites and Parasitoids]]’, *Australian Museum*, updated 6 April 2022, https://australian.museum/learn/animals/insects/predators-parasites-and-parasitoids/.