Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Cnidaria> ?p ?o. }
- Cnidaria abstract "Cnidaria (/naɪˈdɛəriə/ with a silent c) is a phylum containing over 10,000 species of animals found exclusively in aquatic and mostly marine environments. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. They have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Both forms have a single orifice and body cavity that are used for digestion and respiration. Many cnidarian species produce colonies that are single organisms composed of medusa-like or polyp-like zooids, or both. Cnidarians' activities are coordinated by a decentralized nerve net and simple receptors. Several free-swimming Cubozoa and Scyphozoa possess balance-sensing statocysts, and some have simple eyes. Not all cnidarians reproduce sexually. Many have complex lifecycles with asexual polyp stages and sexual medusae, but some omit either the polyp or the medusa stage.Cnidarians were for a long time grouped with Ctenophores in the phylum Coelenterata, but increasing awareness of their differences caused them to be placed in separate phyla. Cnidarians are classified into four main groups: the almost wholly sessile Anthozoa (sea anemones, corals, sea pens); swimming Scyphozoa (jellyfish); Cubozoa (box jellies); and Hydrozoa, a diverse group that includes all the freshwater cnidarians as well as many marine forms, and has both sessile members such as Hydra and colonial swimmers such as the Portuguese Man o' War. Staurozoa have recently been recognised as a class in their own right rather than a sub-group of Scyphozoa, and there is debate about whether Myxozoa and Polypodiozoa are cnidarians or closer to bilaterians (more complex animals).Most cnidarians prey on organisms ranging in size from plankton to animals several times larger than themselves, but many obtain much of their nutrition from endosymbiotic algae, and a few are parasites. Many are preyed upon by other animals including starfish, sea slugs, fish and turtles. Coral reefs, whose polyps are rich in endosymbiotic algae, support some of the world's most productive ecosystems, and protect vegetation in tidal zones and on shorelines from strong currents and tides. While corals are almost entirely restricted to warm, shallow marine waters, other cnidarians live in the depths, in polar seas and in freshwater.Fossil cnidarians have been found in rocks formed about 580 million years ago, and other fossils show that corals may have been present shortly before 490 million years ago and diversified a few million years later. Fossils of cnidarians that do not build mineralized structures are very rare. Scientists currently think that cnidarians, ctenophores and bilaterians are more closely related to calcareous sponges than these are to other sponges, and that anthozoans are the evolutionary "aunts" or "sisters" of other cnidarians, and the most closely related to bilaterians. Recent analyses have concluded that cnidarians, although considered more "primitive" than bilaterians, have a wider range of genes.".
- Cnidaria domain Eukaryote.
- Cnidaria kingdom Animal.
- Cnidaria kingdom Eumetazoa.
- Cnidaria thumbnail Sea_nettles.jpg?width=300.
- Cnidaria wikiPageExternalLink Anemone2.
- Cnidaria wikiPageExternalLink tree?group=Cnidaria&contgroup=Animals.
- Cnidaria wikiPageExternalLink watch?v=6zJiBc_N1Zk.
- Cnidaria wikiPageExternalLink watch?v=WmvjGc2bojk.
- Cnidaria wikiPageExternalLink default.html.
- Cnidaria wikiPageExternalLink index.php?globalnav=fossil_gallery§ionnav=search&taxon_id=55&state_id=&period_id=&assemblage_id=&last_section=search&p=0.
- Cnidaria wikiPageExternalLink Zrz.pdf.
- Cnidaria wikiPageExternalLink www.tafi.org.au.
- Cnidaria wikiPageExternalLink index.html.
- Cnidaria wikiPageExternalLink Fautin.pdf.
- Cnidaria wikiPageExternalLink Kass-Simon.pdf.
- Cnidaria wikiPageExternalLink Mackie.pdf.
- Cnidaria wikiPageExternalLink hydrozoa-directory.htm.
- Cnidaria wikiPageID "6621".
- Cnidaria wikiPageRevisionID "606660358".
- Cnidaria annotBackgroundColor "yellow".
- Cnidaria annotFontSize "10".
- Cnidaria annotFontWeight "bold".
- Cnidaria caption "1".
- Cnidaria caption "12".
- Cnidaria caption "4".
- Cnidaria caption "9".
- Cnidaria caption "Life cycle of a jellyfish:".
- Cnidaria caption "Medusa and polyp".
- Cnidaria caption "The dangerous "sea wasp" Chironex fleckeri".
- Cnidaria domain Eukaryote.
- Cnidaria float "right".
- Cnidaria fossilRange "Ediacaran–Recent".
- Cnidaria hasPhotoCollection Cnidaria.
- Cnidaria height "160".
- Cnidaria height "220".
- Cnidaria height "292".
- Cnidaria imageCaption "Pacific sea nettles, Chrysaora fuscescens".
- Cnidaria imageTop "-90".
- Cnidaria imageTop "5".
- Cnidaria imageWidth "150".
- Cnidaria imageWidth "200".
- Cnidaria imageWidth "250".
- Cnidaria imageWidth "300".
- Cnidaria name "Cnidaria".
- Cnidaria phylum "Cnidaria".
- Cnidaria phylumAuthority "Hatschek, 1888".
- Cnidaria regnum "Animalia".
- Cnidaria subdivision "*Subphylum Anthozoa **Ceriantharia **Hexacorallia **Octocorallia *Subphylum Medusozoa—jellyfish: **Cubozoa—box jellyfish, sea wasps **Hydrozoa—hydroids, hydra-like animals **Scyphozoa—true jellyfish **Staurozoa—stalked jellyfish **Polypodiozoa—parasites *Unranked **Myxozoa—parasites".
- Cnidaria subdivisionRanks "Subphyla and Classes".
- Cnidaria subregnum Eumetazoa.
- Cnidaria width "130".
- Cnidaria width "193".
- Cnidaria width "250".
- Cnidaria subject Category:Cnidarians.
- Cnidaria subject Category:Venomous_animals.
- Cnidaria type Animal100015388.
- Cnidaria type Cnidarians.
- Cnidaria type Coelenterate101909422.
- Cnidaria type Invertebrate101905661.
- Cnidaria type LivingThing100004258.
- Cnidaria type Object100002684.
- Cnidaria type Organism100004475.
- Cnidaria type PhysicalEntity100001930.
- Cnidaria type VenomousAnimals.
- Cnidaria type Whole100003553.
- Cnidaria type Animal.
- Cnidaria type Eukaryote.
- Cnidaria type Species.
- Cnidaria type Animal.
- Cnidaria type BiologicalLivingObject.
- Cnidaria type EukaryoticCell.
- Cnidaria type Organism.
- Cnidaria comment "Cnidaria (/naɪˈdɛəriə/ with a silent c) is a phylum containing over 10,000 species of animals found exclusively in aquatic and mostly marine environments. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick.".
- Cnidaria label "Cnidaria".
- Cnidaria label "Cnidaria".
- Cnidaria label "Cnidaria".
- Cnidaria label "Cnidaria".
- Cnidaria label "Cnidários".
- Cnidaria label "Nesseltiere".
- Cnidaria label "Neteldieren".
- Cnidaria label "Parzydełkowce".
- Cnidaria label "Стрекающие".
- Cnidaria label "لاسعات".
- Cnidaria label "刺胞動物".
- Cnidaria label "刺胞動物門".
- Cnidaria sameAs Žahavci.
- Cnidaria sameAs Nesseltiere.
- Cnidaria sameAs Cnidaria.
- Cnidaria sameAs Cnidaria.
- Cnidaria sameAs Cnidaria.
- Cnidaria sameAs Cnidaria.
- Cnidaria sameAs Cnidaria.
- Cnidaria sameAs 刺胞動物.
- Cnidaria sameAs 자포동물.
- Cnidaria sameAs Neteldieren.
- Cnidaria sameAs Parzydełkowce.
- Cnidaria sameAs Cnidários.
- Cnidaria sameAs m.01y77.
- Cnidaria sameAs Q25441.
