Cnidaria and their evolution
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Cnidaria and their evolution the proceedings of a symposium held at the Zoological Society of London on 3 and 4 March 1965 by

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Published by Academic Press in London .
Written in English

Subjects:

  • Zoology -- Congresses.,
  • Zoology -- Periodicals.

Book details:

Edition Notes

Statementedited by W.J. Rees.
SeriesSymposia of the Zoological Society of London -- no.16
ContributionsRees, W. J., Zoological Society of London.
The Physical Object
Paginationxviii,449p. :
Number of Pages449
ID Numbers
Open LibraryOL14213741M

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  The Cnidaria and their evolution; the proceedings of a symposium held at the Zoological Society of London on 3 and 4 March by Rees, W. J. (William James); Zoological Society of LondonPages: Zoology, Volume The Evolution of the Metozoa presents the significant results of the Cnidaria research, their interpretations and implications in the field of zoology. This book is composed of four chapters, and begins with the establishment of the systematic position of the Spongiae, the position of Ctenophora in the animal classification. Cnidaria (/ n aɪ ˈ d ɛər i ə /) is a phylum under kingdom Animalia containing o species of aquatic animals found both in freshwater and marine environments: they are predominantly marine.. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing bodies consist of mesoglea, a non-living jelly-like substance, sandwiched Clade: ParaHoxozoa. Start studying Invertebrate evolution: Porifera, Cnidaria, and Ctenophora. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

THE ROLE OF CNIDARIA IN EVOLUTION AND ECOLOGY 67 er" (Pilato, ), the endoderm layer is formed during the course of embryonic and larval development, in-cluding cnidarian planulae, by secondary differentiation from a true mesenchyme of ectodermal derivation, which migrated inward first to fill the blástula cavity. Get this from a library! The Cnidaria and their evolution: the proceedings of a symposium held at the Zoological Society of London on 3 and 4 March [William James Rees; Zoological Society of London.]. The Cnidaria are established as a monophylum by their cnidocysts, planula larva, and a polyp stage. The Ctenophora were seen as the most probable sister group of the : Stanley Shostak.   In recent years, interest in the use of cnidarians and other basal metazoans (see Glossary, Box 1) as model organisms has grown, particularly with the goal of understanding the evolution of the Bilateria (see Glossary, Box 1).Cnidaria is an early-branching metazoan lineage, and four of the five current cnidarian classes (Anthozoa, Hydrozoa, Cubozoa, Scyphozoa and Cited by:

Thesis: What environmental issues that the humans have created will impact the cnidarian in evolving in the future generations and how have they evolved in the past? What are Cnidarians? -O species -Jellyfish, sea anemones, sea pens and coral Where are cnidarians on the. The text-book depiction of the typical cnidarian life cycle is an alternation between a medusa and a polyp (termed metagenesis), the former the sexually reproductive stage and the latter the asexual stage. The Cnidaria and their Evolution (The Proceedings of a Symposium held at The Zoological Society of London on 3 and 4 March Description: Zoology, Volume The Evolution of the Metozoa presents the significant results of the Cnidaria research, their interpretations and implications in the field of zoology. This book is composed of four chapters, and begins with the establishment of the systematic position of the Spongiae, the position of Ctenophora in the animal. Human evolution, the process by which human beings developed on Earth from now-extinct primates. The only extant members of the human tribe, Hominini, belong to the species Homo sapiens. The exact nature of the evolutionary relationships between modern humans and their ancestors remains the subject of debate.