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Eumetazoa
acoelomate
acoelomate Describing any bilaterally symmetrical animal of the subkingdom Eumetazoa that does not possess a
coelom (see also
body cavity). Examples of acoelomate animals are the platyhelminths.
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Studies from Yale University reveal new findings on life sciences.(Report)
Newspaper article from: Life Science Weekly; 9/22/2009; 700+ words
; ...paraphyly of sponges and the monophyly of Eumetazoa,' are detailed in a study published...Bayesian analyses support the monophyly of Eumetazoa (here Cnidaria + Bilateria) and a sister...Placozoa (here Trichoplax adhaerens) and Eumetazoa. Bayes factors invariably provide decisive...
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Homeoboxes in sea anemones (Cnidaria; Anthozoa): a PCR-based survey of Nematostella vectensis and Metridium senile. (Polymerase Chain Reaction)
Magazine article from: The Biological Bulletin; 8/1/1997; ; 700+ words
; ...phylogenetic evidence places the Cnidaria near the base of the Eumetazoa, possibly as the sister group to the Bilateria. The Cnidaria...ancestral function of these genes in the Cnidaria and in the Eumetazoa. Two techniques have been used to rapidly survey metazoan...
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Evolution of hedgehog and hedgehog -related genes, their origin from Hog proteins in ancestral eukaryotes and discovery of a novel Hint motif.(Research article)
Magazine article from: BMC Genomics; 3/11/2008; ; 700+ words
; ...recovered from the sponge Oscarella carmela [27], indicating that the "Hedge" domain originated before the advent of Eumetazoa. In order to understand the origin and evolution of the C. elegans hh -related genes, we had already performed cursory...
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Phylogenetic analysis of the Olenellina Walcott, 1890 (Trilobita, Cambrian)
Magazine article from: Journal of Paleontology; 1/1/2001; ; 700+ words
; ...Regarding evolutionary mechanisms, because the Cambrian radiation represents that key episode in earth history when the Eumetazoa diversified, and because there is a dramatic disjunction between pre- and post Early Cambrian faunas, it is of interest...
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Does the high gene density in the sponge NK homeobox gene cluster reflect limited regulatory capacity?
Magazine article from: The Biological Bulletin; 6/1/2008; ; 700+ words
; ...et al., 2003; Steenkamp et al, 2006). The Metazoa consists of at least two ancient lineages of extant animals, the Eumetazoa (cnidarians, placozoans, and bilaterian phyla) and phylum Porifera (sponges) (e.g., Cavalier-Smith et al...
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Marine invertebrate genome sequences and our evolving understanding of animal immunity.
Magazine article from: The Biological Bulletin; 6/1/2008; ; 700+ words
; ...central core of immunology. The situation has begun to change with the realization that core immune mechanisms are shared among Eumetazoa and with the steady accumulation of molecular evidence for basic shared characters among bilaterian immune cells. Immune...
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Progress in sponge biology (1).(INTRODUCTION)
Magazine article from: Canadian Journal of Zoology; 2/1/2006; ; 700+ words
; ...independently from unicellular organisms. In fact, we used to call them Parazoa to distinguish them from the "true" metazoans or Eumetazoa. Some early molecular data appeared to support this distinction, but it is now clear that the Metazoa are monophyletic...
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Eumetazoa
Book article from: The Columbia Encyclopedia, Sixth Edition
Eumetazoa , subkingdom of the animal kingdom comprising all animals except the sponges and the wormlike mezozoans (see Mezozoa ).
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Body Plan
Book article from: Animal Sciences
...asymmetrical or radially symmetrical. Eumetazoa - Radiata Phylum Cnidaria (anemones...organ, two tentacles, bioluminescence. Eumetazoa - Bilateria -Acoelomates Phylum Platyhelminthes...Eucoelomates-Protostomes Characteristics: eumetazoa, triploblastic, bilateral symmetry...
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animal
Book article from: The Columbia Encyclopedia, Sixth Edition
...has been divided into the three subkingdoms of Parazoa (the sponges), Mezozoa (wormlike parasites), and Eumetazoa. Eumetazoa comprises numerous invertebrate phyla and the phylum Chordata . The chordates include two primitive subphyla of...
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Metazoa
Book article from: A Dictionary of Biology
Metazoa ( Eumetazoa ) A subkingdom comprising all multicellular animals. It excludes the Porifera (sponges) and Placozoa , which are placed in a separate subkingdom, Parazoa.
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acoelomate
Book article from: A Dictionary of Biology
acoelomate Describing any bilaterally symmetrical animal of the subkingdom Eumetazoa that does not possess a coelom (see also body cavity ). Examples of acoelomate animals are the platyhelminths.
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