Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Protostome> ?p ?o }
- Protostome abstract "Protostomia (from Greek meaning "mouth first") are a clade of animals. Together with the deuterostomes and other phyla, they make up the Bilateria, mostly comprising animals with bilateral symmetry and three germ layers. The major distinctions between deuterostomes and protostomes are found in embryonic development.In animals at least as complex as earthworms, the embryo forms a dent on one side, the blastopore, which deepens to become the archenteron, the first phase in the growth of the gut. In deuterostomes, the original dent becomes the anus while the gut eventually tunnels through to make another opening, which forms the mouth. The protostomes were so named because it used to be thought that in their embryos the dent formed the mouth while the anus was formed later, at the opening made by the other end of the gut.More recent research, however, shows that in protostomes the edges of the dent close up in the middle, leaving openings at the ends which become the mouth and anus. However, this idea has been challenged, because the Acoelomorpha, a group which may be the sister group to the rest of the bilaterian animals, have a single mouth which leads into a blind gut (with no anus). The genes employed in the embryonic construction of this mouth are the same as those expressed around the protostome mouth.There are other significant differences between the protostome and deuterostome patterns of development:Most protostomes are schizocoelomates, meaning a solid mass of the embryonic mesoderm splits to form a coelom. A few, such as Priapulids, have no coelom, but they may have descended from schizocoelomate ancestors. On the other hand, all known deuterostomes are enterocoelous, meaning that the coelom is formed from longitudinal pouches of the archenteron which then become separate cavities. Within the Protostomes a number of phyla undergo what is known as spiral cleavage which is determinate, meaning that the fate of the cells is determined as they are formed. This is in contrast to deuterostomes which have radial cleavage that is indeterminate.Current molecular data suggest that protostome animals can be divided into three major groups:Ecdysozoa, e.g. arthropods, nematodesPlatyzoa, e.g. platyhelminths, rotifersLophotrochozoa, e.g. molluscs, annelidsas well as a number of minor taxa of basal or ambiguous affinity, namely the Chaetognatha.".
- Protostome domain Eukaryote.
- Protostome kingdom Animal.
- Protostome kingdom Eumetazoa.
- Protostome thumbnail Caribbean_reef_squid.jpg?width=300.
- Protostome wikiPageExternalLink TaxonTree.aspx?id=198701.
- Protostome wikiPageID "19826952".
- Protostome wikiPageLength "4391".
- Protostome wikiPageOutDegree "50".
- Protostome wikiPageRevisionID "676318674".
- Protostome wikiPageWikiLink Acoelomorpha.
- Protostome wikiPageWikiLink Animal.
- Protostome wikiPageWikiLink Annelid.
- Protostome wikiPageWikiLink Annelida.
- Protostome wikiPageWikiLink Archenteron.
- Protostome wikiPageWikiLink Arthropod.
- Protostome wikiPageWikiLink Arthropoda.
- Protostome wikiPageWikiLink Bilateria.
- Protostome wikiPageWikiLink Blastopore.
- Protostome wikiPageWikiLink Caribbean_Reef_Squid.
- Protostome wikiPageWikiLink Caribbean_reef_squid.
- Protostome wikiPageWikiLink Category:Ediacaran_first_appearances.
- Protostome wikiPageWikiLink Category:Protostomes.
- Protostome wikiPageWikiLink Chaetognatha.
- Protostome wikiPageWikiLink Clade.
- Protostome wikiPageWikiLink Cleavage_(embryo).
- Protostome wikiPageWikiLink Coelom.
- Protostome wikiPageWikiLink Deuterostome.
- Protostome wikiPageWikiLink Earthworm.
- Protostome wikiPageWikiLink Earthworms.
- Protostome wikiPageWikiLink Ecdysozoa.
- Protostome wikiPageWikiLink Embryo.
- Protostome wikiPageWikiLink Embryogenesis.
- Protostome wikiPageWikiLink Embryological_origins_of_the_mouth_and_anus.
- Protostome wikiPageWikiLink Enterocoely.
- Protostome wikiPageWikiLink Eukaryota.
- Protostome wikiPageWikiLink Eukaryote.
- Protostome wikiPageWikiLink Eumetazoa.
- Protostome wikiPageWikiLink Flatworm.
- Protostome wikiPageWikiLink Gastrulation.
- Protostome wikiPageWikiLink Germ_layer.
- Protostome wikiPageWikiLink Greek_language.
- Protostome wikiPageWikiLink Gut_(anatomy).
- Protostome wikiPageWikiLink Gut_(zoology).
- Protostome wikiPageWikiLink Karl_Grobben.
- Protostome wikiPageWikiLink Lophotrochozoa.
- Protostome wikiPageWikiLink Mesoderm.
- Protostome wikiPageWikiLink Mollusca.
- Protostome wikiPageWikiLink Nematoda.
- Protostome wikiPageWikiLink Nematode.
- Protostome wikiPageWikiLink Phylum.
- Protostome wikiPageWikiLink Platyhelminthes.
- Protostome wikiPageWikiLink Platyzoa.
- Protostome wikiPageWikiLink Priapulid.
- Protostome wikiPageWikiLink Priapulida.
- Protostome wikiPageWikiLink Radial_cleavage.
- Protostome wikiPageWikiLink Rotifer.
- Protostome wikiPageWikiLink Rotifera.
- Protostome wikiPageWikiLink Spiral_cleavage.
- Protostome wikiPageWikiLink Symmetry_(biology).
- Protostome wikiPageWikiLink Symmetry_in_biology.
- Protostome wikiPageWikiLink Triploblastic.
- Protostome wikiPageWikiLink Triploblasty.
- Protostome wikiPageWikiLink File:Protovsdeuterostomes.svg.
- Protostome wikiPageWikiLinkText "Protostome".
- Protostome wikiPageWikiLinkText "Protostomia".
- Protostome wikiPageWikiLinkText "protostome".
- Protostome wikiPageWikiLinkText "protostomia".
- Protostome domain Eukaryota.
- Protostome domain Eukaryote.
- Protostome hasPhotoCollection Protostome.
- Protostome imageCaption "A Caribbean Reef Squid, an example of a protostome.".
- Protostome imageWidth "200".
- Protostome name "Protostomes".
- Protostome regnum "Animalia".
- Protostome subdivision "*Ecdysozoa *Lophotrochozoa *Platyzoa".
- Protostome subdivisionRanks "Superphyla".
- Protostome subregnum Eumetazoa.
- Protostome unrankedPhylum "Protostomia".
- Protostome unrankedPhylumAuthority "Grobben, 1908".
- Protostome unrankedSuperphylum Bilateria.
- Protostome wikiPageUsesTemplate Template:Animalia.
- Protostome wikiPageUsesTemplate Template:Clarify.
- Protostome wikiPageUsesTemplate Template:Invertebrate-stub.
- Protostome wikiPageUsesTemplate Template:Refimprove.
- Protostome wikiPageUsesTemplate Template:Reflist.
- Protostome wikiPageUsesTemplate Template:Taxobox.
- Protostome wikiPageUsesTemplate Template:Wikispecies.
- Protostome subject Category:Ediacaran_first_appearances.
- Protostome subject Category:Protostomes.
- Protostome hypernym Clade.
- Protostome type Animal.
- Protostome type Article.
- Protostome type Eukaryote.
- Protostome type Species.
- Protostome type Article.
- Protostome type Thing.
- Protostome type Concept.
- Protostome type Q19088.
- Protostome type Q729.