What is the definition of a "protist"?

Answer

According to About.com, organisms are classified into kingdom Protista by exclusion, when they are eukaryotic, meaning they are made up of cells where the nucleus is surrounded by a membrane, but cannot be otherwise classified as animals, plants or fungi.

How Stuff Works adds "This kingdom, sometimes called Protoctista, consists of single-celled micro-organisms and simple multi-celled organisms." Most of the protist phylums make their home in water, being considered marine or freshwater phylums, although a few are terrestrial or parasitic. A very diverse set of organisms is represented, including amoeba, kelp and various kinds of algae, like Irish moss, which is a kind of red algae.

Q&A Related to "What is the definition of a "protist"?"
Protists are the scientific name for a large classification of microorganisms. They are either unicellular, or have multiple cells with specialized tissues. Algae is a good example
http://www.ask.com/web-answers/Science/Biology/wha...
Amoeba. Amoebae change their shapes to engulf other things and send out "feet" to pull themselves along.
http://wiki.answers.com/Q/A+protist+which+no+defin...
The protists are free-living or colonial organisms with diverse nutritional and
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Protists are eukaryotes, meaning they have a nucleus, and are classified in the Kingdom Protista, which also includes algae, protozoans and some types of fungus. These organisms are
http://www.ehow.com/about_5139239_diseases-do-prot...
1 Additional Answer
Ask.com Answer for: what is the definition of a protist
pro·tist
[proh-tist]
NOUN
1.
any of various one-celled organisms, classified in the kingdom Protista, that are either free-living or aggregated into simple colonies and that have diverse reproductive and nutritional modes, including the protozoans, eukaryotic algae, and slime molds: some classification schemes also include the fungi and the more primitive bacteria and blue-green algae or may distribute the organisms between the kingdoms Plantae and Animalia according to dominant characteristics.
Source: Dictionary.com
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