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| | Metazoa |
 | | Metazoa are considered monophyletic, meaning that all organisms developed from a common ancestral form. | | | Unlike other Metazoa, sponges do not have muscles or nerves and therefore do not move except at the level of the individual cell. | | | Several lines of evidence indicate that choanozoans gave rise to sponges, which are the most primitive metazoans. |
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http://www.sciencemag.org/feature/data/tol/metazoa.html
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| | VI The Cambrian explosion |
| | Cambrian arises thus more like a period of evolutionary experimentation, metazoa radiation and lines diversification that like a period of speciation. | | | Let us point out the complex relations which exist between the metazoa and free molecular oxygen. | | | The Spongiae (phylum of Porifera) found in the Neoproterozoic sediments are the most primitive metazoa organisms. |
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http://dinosaurs.ifrance.com/sixthecambrianexplosion.htm
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| | Palaeos Invertebrates: Metazoa |
| | The problem here is that although choanoflagellates seem clearly related to sponges, it is not clear how closely related sponges are to the rest of the Metazoa. | | | It is also difficult to see how such a poorly organized organism as a sponge (essentially nothing but a glorified colonial protozoan) can develop into organisms with a proper body structure and internal organs. | | | The actual nature of this organism is not known, as it was soft-bodied and left no trace. |
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http://www.palaeos.com/Invertebrates
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| | Origin and Early Evolution of Metazoa |
| | Along with this symmetry change, there is a radical reduction in the number of body plans. | | | They are predominantly bilaterian in body symmetry, a major switch from the dominant radial symmetry of the Vendian metazoa. | | | These skeletons are key in the controversy of the "Cambrian Explosion." There is little evidence in the fossil record of gradual ability to form skeletons. |
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http://www.earth.rochester.edu/ees207/Zahradnick/zahradnik5.html
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| | Discussion of usage: Metazoa and Kingdom Animalia |
| | Here is what I found out after researching some old and new college biology texts. | | | The use of the word "Metazoa" came up in yesterday's discussion (see thePPT slides on website); some of you commented that you never heard theword before (even in fresh biology), others said it might be outdated. | | | In the book's index there is no mention of metazoa. |
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http://duedall.fit.edu/ocn1010eng/metazoa.htm
(390 words)
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| | Animals |
| | Defining phyla: evolutionary pathways to metazoan body plans. | | | Phylogenetic analysis of complete small subunit ribosomal RNA coding region of Myxidium lieberkuehni: Evidence that Myxozoa are Metazoa and related to the Bilateria. | | | Phylogeny of the Metazoa based on morphological and 18S ribosomal DNA evidence. |
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http://tolweb.org/tree?group=Animals&contgroup=Eukaryotes
(1309 words)
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| | [No title] |
| | GB_RELEASE 92.0 GB_ENTRIES 1857 GB_BASEPAIRS 1453447 GENOME_SIZE 25000000 (unconfirmed) // ORGANISM Rattus norvegicus COMMON_NAME Rat CLASSIFICATION eukaryota; metazoa; chordata; vertebrata; tetrapoda; mammalia; eutheria; rodentia. | | | REF_JOURNAL J Parasitology REF_VOLUME 60 REF_PAGES 725-7 REF_YEAR 1974 // ORGANISM Fugu rubripes COMMON_NAME Pufferfish, Japanese (Takifugu rubripes) CLASSIFICATION eukaryota; metazoa; chordata; vertebrata; pisces; gnathostomata; osteichthyes; actinopterygii; tetraodontiformes. | | | COMPLETED no GB_RELEASE 92.0 GB_ENTRIES 12,411 GB_BASEPAIRS 4,831,193 GENOME_SIZE 400000000 REF_TYPE 1 unconfirmed // ORGANISM Plasmodium falciparum COMMON_NAME Plasmodium falciparum CLASSIFICATION eukaryota; protozoa; apicomplexa; sporozoa; coccidia; eucoccidiida. |
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http://www.cbs.dtu.dk/databases/DOGS/dogs.dat
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| | Learn more about Animal in the online encyclopedia. |
| | Distinguishing features of the Metazoa include a nervous system and muscles. | | | The scientific study of animals is called zoology. | | | Colloquially, "animal" often is used to refer to all animals other than humans and rarely to refer to animals not classified as metazoan (see "Metazoa" below). |
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http://www.onlineencyclopedia.org/a/an/animal.html
(1497 words)
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| | Metazoa |
| | It may be formalized as a subkingdom, but its treatment varies considerably. | | | Metazoa usually refers to the animals with fully differentiated tissues, including nerves and muscles. | | | In older texts, Metazoa is often taken to be synonymous with our Animalia, excluding only the protozoa. |
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http://www.yotor.com/wiki/en/me/Metazoa.htm
(74 words)
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| | Animal - Wikipedia, the free encyclopedia |
| | In general they are multicellular, capable of locomotion and responsive to their environment, and feed by consuming other organisms. | | | Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. | | | For the Muppet Show character, see Animal (Muppet). |
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http://en.wikipedia.org/wiki/Metazoa
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| | Metazoa |
| | Metazoa is the subkingdom in the tree of life that includes most of the multi-celled More specifically metazoa evolved differentiated cells including cells and muscles. | | | I read this book as part of an ongoing research project into the evoulution of the first multicellular organisms, and it provided a great range of information, covering an array of differing viewpoints as to what happened when and why. | | | Multicellular Animals: A New Approach to the Phylogenetic Order in Nature (Multicellular Animals) |
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http://www.freeglossary.com/Metazoa
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| | Update of MmtDB: a Metazoa mitochondrial DNA variants database -- Attimonelli et al. 26 (1): 120 -- Nucleic Acids ... |
| | Priority in the data collection has been given to Metazoa for which a large amount of variants is available, e.g., for humans. | | | Figure 3 shows an example of MmtDB entry in the flatfile format, which is commonly used by most of the biological databases such as the EMBL data library, GenBank, SWISS-PROT (24) and many others. | | | The idea to create a Metazoa mtDNA variants specialised database (MmtDB) originated from the awareness that a large mass of information associated to mtDNA sequences is not stored in the primary databases which instead contain redundant information (e.g., bibliographic and taxonomic). |
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http://nar.oxfordjournals.org/cgi/content/full/26/1/120
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| | Multicllular Animals The Phylogenetic System of the Metazoa, Vol. II |
| | It seeks a new path in the field of research and academic teaching based on the theory and methodology of phylogenetic systematics. | | | This volume covers the Metazoa from the Mollusca up to the Arthropoda; the last Volume III will treat the Nemathelminthes and the Deuterostomia. | | | In a new approach to the phylogenetic order in nature this book strives for an objective systematization of the Metazoa. |
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http://www.christ-media.de/buecher/Multicllular_Animals.htm
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| | Multi-celled Animals |
| | The term "multi-celled" when applied to a plant or animal means that the organism is made up of several different cell types. | | | Primitive metazoa can be grouped in three basic categories: sponge-like animals, cnidarians, and worms. | | | The first metazoa were entirely soft-bodied (without shells or hard parts of any kind) and they evolved during a time called the Precambrian (older than 545 million years). |
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http://geol.queensu.ca/museum/exhibits/oldanim/oldanim.html
(774 words)
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| | Metazoa - definition of Metazoa by the Free Online Dictionary, Thesaurus and Encyclopedia. |
| | This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. | | | metazoan - any animal of the subkingdom Metazoa; all animals except protozoans and sponges | | | Metazoa - multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system |
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http://www.thefreedictionary.com/Metazoa
(138 words)
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| | Evolution of Metazoa |
| | However, the Metazoa (multicellular animals) are probably monophyletic. | | | Suggest that diverse Metazoa were present without hard parts well before the Precambrian-Cambrian boundary. | | | Supported by some 18s rRNA data which suggest plants, fungi, and sponges have a common ancestor independent of other Metazoa. |
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http://www.bios.niu.edu/Parrish/401.htm
(793 words)
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| | Origin and Early Evolution of Metazoa |
| | The question of their origin is a key one--these first metazoa are fairly complex. | | | Kimberella, a bilaterally symmetric metazoa, once thought to be a jellyfish, but now known to have had some rigid parts, and was possibly a proto-mollusc | | | This period is characterized by the sudden emergence in the fossil record of the first metazoa, and their subsequent disappearance by the beginning of the Cambrian. |
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http://www.earth.rochester.edu/ees207/Zahradnick/zahradnik4.html
(390 words)
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| | GarageGames |
| | Metazoa will also be used to develop game titles within Futureworks beginning this fall starting with Hubrismania. | | | This system is being designed to meet the unique needs of independent game developers at a cost they can afford. |
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http://www.garagegames.com/index.php?sec=mg&mod=project&page=view.job&qid=3068
(379 words)
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| | :: MetaZoa :: welcome :: |
| | MetaZoa has been on the guitar since he was made to |
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http://www.scrubrecords.com/artists/1035
(50 words)
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| | Metazoa: The Animal Kingdom - Animal Life |
| | In essence, creatures in the Metazoa phyla are those which come from eggs. | | | It doesn't matter if this egg then forms the baby within the mother's body, or whether the mother pushes the egg out for it to hatch later on. | | | With only few exceptions, the egg is the defining role for membership in this group. |
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http://www.bellaonline.com/ArticlesP/art958.asp
(288 words)
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| | Davis - CUNY Graduate Center |
| | This scheme represents only one possible view and the evolutionary origin and relationships among the early metazoa remain controversial. | | | This representation illustrates a potential role for a flagellate ancestor of metazoa (this is unlikely to be the kinetoplastida or their relatives), a proto-flatworm as an ancestor of bilateral metazoa, and the questionable origins of the nematodes and ctenophores. | | | One possible monophyletic evolutionary scheme for the metazoa illustrating relationships among some early metazoa. |
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http://www.library.csi.cuny.edu/~davis/faculty_page/todayfigs.html
(425 words)
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| | About Animals [encyclopedia] |
| | Animals comprise three subkingdoms: the Protozoa, which consist of single cells or simple colonies of these; the Parazoa or sponges, which have a body made up of many cells but lack nerve cells, muscle cells and definite organs; and the Metazoa, which have bodies that are organized into definite tissues and organs. | | | The most obvious characteristic of animals is that, unlike plants, they are unable to use the energy of sunlight to power their life processes (autotrophy) and must obtain their nourishment by feeding on other living organisms, the excretions or secretions of these, or their dead remains. | | | Most animals are free-living and can move rapidly towards a favourable stimulus and away from an unfavourable one. |
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http://kosmoi.com/Life/Animals/about.shtml
(744 words)
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| | Metazoa |
| | Introduction to the Metazoa Information on the group's fossil record, life history, ecology, systematics and morphology, covering each group of organisms (each taxon). | | | Help build the largest human-edited directory on the web. |
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http://www.serebella.com/encyclopedia/article-Metazoa.html
(69 words)
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| | Best Book Buys - Metazoa Books |
| | Books > Browse > Subject Category > Science > Life Sciences / Biology > Metazoa | | | Subject Category > Science > Life Sciences / Biology > Metazoa |
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http://www.bestwebbuys.com/Biology-N_10037924-books.html
(65 words)
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| | Metazoa: Zoology |
| | Origins and Relationships of the Metazoa - Text. | | | Introduction to the Metazoa (University of California, Berkeley) - Life History and Ecology, Systematics, More on the Morphology. | | | Home > Links > Chemistry and Biology > Zoology > Metazoa |
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http://www.infochembio.ethz.ch/links/en/zool_metazoa.html
(45 words)
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| | PR Newswire: Craig Newmark Joins Metazoa Inc.'s Advisory Board.@ HighBeam Research |
| | Metazoa Inc., a provider of Web-based research management applications for life scientists, today announced that Web-community pioneer Craig Newmark, 47, has joined the company's board of advisors. | | | PR Newswire: Craig Newmark Joins Metazoa Inc.'s Advisory Board.@ HighBeam Research |
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http://www.highbeam.com/library/doc0.asp?DOCID=1G1:61931676&refid=ip_encyclopedia_hf
(165 words)
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| | Synonyms of metazoa |
| | usage: any animal of the subkingdom Metazoa; all animals except protozoans and sponges |
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http://www.infoplease.com/thesaurus/metazoa
(47 words)
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| | system der metazoa |
| | System Mechanic 5 Professional - NEW FACTORY SEALED | | | System Shield was designed to protect your system from unauthorized attempts at recovering data that was intended to remain private or confidential. | | | ...differentiated into tissues and organs and usually a digestive cavity and nervous system Synonyms subkingdom Metazoa See Also animal kingdom... |
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http://www.incollaboration.net/system-der-metazoa.html
(182 words)
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| | Z250 - Metazoa Clade (2005) |
| | For an alternative view and discussion see the Metazoa systematics page of the University of California Museum of Paleontology. |
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http://www.biology.ualberta.ca/courses.hp/zool250/Clades/clade02-Metazoa.htm
(310 words)
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| | A weird wee beastie: Trichoplax adhaerens |
| | Trichoplax is an interesting organism to study, because it is one of those "missing links" that provides some hints about the evolution of some of the metazoa. | | | It has only three cell layers and purportedly only four different kinds of cells. |
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http://www.microscopy-uk.org.uk/mag/artoct98/tricho.html
(1863 words)
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| | Renaissance Animal Classification |
| | The sponges differ so much from other multicellular animal groups that they are isolated in this special subkingdom, whereas the remainder of multicellular animals are placed in the subkingdom Eumetazoa, or true Metazoa. | | | However, phylum Placozoa only has one species, which looks like a large amoeba. | | | Sponges are found predominantly in salt water, although there are a few fresh water forms. |
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http://www.vernonjohns.org/vernjohns/rnanimls.html
(2595 words)
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| | ROTIFERA-intro.html |
| | Their name, Rotifera, is Latin for "wheel-bearer" and was given to describe the seemingly circular motion of the corona (ciliated crown) on the top of their heads (Egmond, 1998). | | | Rotifers are the microscopic multicellular animals of the subkingdom metazoa that |
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http://www.personal.psu.edu/slg260
(406 words)
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| | californiadigitallibrary.org: Search Results |
| | Includes information on the "fossil record, life history, ecology, systematics [subgroups] and morphology" of each class of animals. | | | 1Title: Introduction to the Metazoa: Animals, Animals, Animalsand#33 |
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http://www.californiadigitallibrary.org/cgi/generic-search?sort=title;mode=publicdl;subject=Metazoa
(54 words)
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| | Metazoa (animals) |
| | Sponges are multicellular but unlike other members of the Metazoa (animals) they do not have muscles or nerves and because of this, they are sedentary and do not move except at an individual cellular level. | | | They are found mainly in the sea but there are also freshwater species. | | | Go back to Classification of Life on Earth |
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http://www.museums.org.za/bio/metazoa.htm
(414 words)
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| | Comparative Protein Analysis |
| | Categorization by Kingdom Pairs (BlastP overlap > 60%) | | | For example, the cell (Metazoa, Viridiplantae) represents the total number of Neurospora crassa 3 genes that contain at least one BlastP alignment with a minimum percent overlap of 60% to the Metazoa kingdom and one BlastP alignment to the Plant kingdom. | | | For example, the cell (Metazoa, Viridiplantae) represents the total number of Neurospora crassa 3 genes that contain at least one BlastP alignment to the Metazoa kingdom and one BlastP alignment to the Plant kingdom. |
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http://www.broad.mit.edu/annotation/fungi/neurospora_crassa_3/taxanalysis.html
(381 words)
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| | Introduction to the Metazoa |
| | If you do not want to follow phylogeny, you can always select our Web Lift to Taxa, at the bottom of most pages, to get to any of our exhibits on organisms. | | | Navigate deeper into the diverse animal groups by selecting Systematics! | | | Click on the buttons below to learn more about Metazoa |
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http://www.ucmp.berkeley.edu/phyla/phyla.html
(175 words)
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| | The Zeitgeist Gallery: Early: Metazoa |
| | Attempting to erase the boundaries between contemporary chamber music and improvised music, Metazoa will show the audience a unique and sensitive way of communicating musically. | | | Metazoa is a collective of improvising musicians from Canada, Norway and Sweden and is appearing for the first time in the US February 6. |
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http://www.zeitgeist-gallery.org/archives/2005/02/06/early_metazoa.html
(80 words)
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