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Protozoa (sg.: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris.
Marine protists are defined by their habitat as protists that live in marine environments, that is, in the saltwater of seas or oceans or the brackish water of coastal estuaries. Life originated as marine single-celled prokaryotes (bacteria and archaea) and later evolved into more complex eukaryotes. Eukaryotes are the more developed life forms ...
Bodo saltans (alternatively known as Pleuromonas jaculans) is a free-living nonparasitic species of kinetoplastid flagellated phagotrophic protozoa that feed on bacteria. [1] Bodo saltans cells have been reported in freshwater and marine environments. Bodo saltans is a single-celled bean-shaped organism 4 to 5 micrometers in length. It has two ...
The British protozoologist Thomas Cavalier-Smith, since 1998, developed a six-kingdom model: [g] Bacteria, Animalia, Plantae, Fungi, Protozoa and Chromista. [10] [206] In his context, paraphyletic groups take preference over clades: [10] both protist kingdoms Protozoa and Chromista contain paraphyletic phyla such as Apusozoa, Eolouka or ...
Naegleria / n ɛ ˈ ɡ l ɪər i ə / is a genus consisting of 47 described species of protozoa often found in warm aquatic environments as well as soil habitats worldwide. [1] It has three life cycle forms: the amoeboid stage, the cyst stage, and the flagellated stage, and has been routinely studied for its ease in change from amoeboid to flagellated stages. [1]
Some ciliates are mouthless and feed by absorption , while others are predatory and feed on other protozoa and in particular on other ciliates. Some ciliates parasitize animals , although only one species, Balantidium coli , is known to cause disease in humans.
Protozoa from "Zenon: Girl of the 21st Century" was basically the the coolest rockstar to come from Outer Space. He was a heartthrob to Zenon and girls and boys everywhere, and we all just wanted ...
Apicomplexa – parasitic and secondary non-photosynthetic protozoa that lack axonemal locomotive structures except in gametes The Acavomonidia and Colponemidia were previously grouped together as colponemids, a taxon now split because each has a distinctive organization or ultrastructural identity .