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What are ctenophora?

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Ctenophora , a small phylum of exclusively marine, invertebrate animals, commonly known as sea walnuts or comb jellies.

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Planktonic feeding and evolutionary significance of the lobate body plan within...
Magazine article from: The Biological Bulletin ...taxa. By making this prey group available, the lobate characteristics enabled a substantial radiation of forms within the Ctenophora, particularly in open-ocean communities, where the planktonic size spectrum is shifted downward relative to coastal and...
Not all ctenophores are bioluminescent: Pleurobrachia.
Magazine article from: The Biological Bulletin ...their ability to produce light (Herring, 1987; Haddock and Case, 1994), but even among these organisms, the phylum Ctenophora is remarkable for the extent of bioluminescence expression. Because there have been no systematic investigations, speculation...
Phylogenetic position of the dicyemid mesozoa inferred from 18s rDNA sequences.
Magazine article from: The Biological Bulletin ...neoformans (Fungi), X60183; Arabidopsis thaliana (Plantae), X16077; Volvox carteri (Plantae), X53904; Beroe cucumis (Ctenophora), D15068; Trichoplax adhaerens (Placozoa), L10828; Anemonia sulcata (Cnidaria), X53498; Scypha ciliata (Porifera...
Direct observation of contact digestion in inside-out oriented Aurelia aurita...
Magazine article from: The Biological Bulletin ...and J. A. Westfall eds. 1991. Microscopical Anatomy of Invertebrates, Vol. II. Placozoa, Porifera, Cnidaria, and Ctenophora. Wiley-Liss, New York. [2.] Chapman D. W. 1965. Am. Zool 5:455-464. [3.] Chapman, D. W. 1973. Helg...
Luciferase of the scyphozoan medusa Periphylla periphylla.
Magazine article from: The Biological Bulletin ...Shimomura and Johnson, 1979). The bioluminescence of the class Scyphozoa has never been biochemically studied. In the phylum Ctenophora, many species are bioluminescent, and two of them - Mnemiopsis sp. and Beroe ovata - contain [Ca.sup.2+]-sensitive...
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