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Deuterostômios ( português brasileiro) ou deuterostómios ( português europeu) ( deuterostomia Grobben, 1908; do grego deuteros, posterior + stoma, boca), é um grupo de animais ligados por diversos aspectos embrionários peculiares, como a forma de clivagem, a forma de suas larvas, o desenvolvimento do celoma e pelas aberturas ...
Origins and evolution. Phylogeny. Fossil record. References. Further reading. External links. Deuterostomes (from Greek: lit. 'mouth second') are bilaterian animals of the superphylum Deuterostomia ( / ˌdjuːtərəˈstoʊmi.ə / ), [3] [4] typically characterized by their anus forming before the mouth during embryonic development.
Article History. arrowworm. Also called: chaetognath. Related Topics: Eumetazoa. arrowworm, any member of a group of free-living wormlike marine carnivores that belong to the invertebrate phylum Chaetognatha. The bodies of arrowworms appear transparent to translucent or opaque and are arrow shaped.
- The Editors of Encyclopaedia Britannica
Xenoturbella. Acoelomata. Les Deutérostomiens ( Deuterostomia) sont un super-embranchement d' animaux bilatériens réunissant principalement les chordés, les échinodermes et les hemichordés. Il a pour groupe frère le clade des protostomiens, avec lequel ils forment le taxon des néphrozoaires.
In cell biology, a deuterosome is a protein structure within a multiciliated cell (such as an epithelial cell of respiratory tract) that produces multiple centrioles . Most cells in human body possess one primary cilium, [1] a relatively small protrusion of the cell membrane that looks like a stick or a finger under the electron ...
The embryological origin of the mouth and anus is an important characteristic, and forms the morphological basis for separating bilaterian animals into two natural groupings: the protostomes and deuterostomes .
Artigo sobre os animais deuterostômios, quais são as diferenças para os protostômios, exemplos de filos de animais Deuterostomados, etc.
