Download or read book Sponges Are Skeletons written by Barbara Juster Esbensen and published by HarperCollins. This book was released on 1998-05-08 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time to squeeze a skeleton! It's bath time, and your sponge is actually the skeleton of an animal that lived under the sea. Read on to find out how sponges use their special holes and tunnels to eat and breathe, and how you use these same holes and tunnels to soak up the water and rinse off the soap.Sploosh! Splash! Dribble! Did you know your bath sponge once lived in the sea? Sponges come in all shapes, colors, and sizes. Barbara Juster Esbensen and Holly Keller have paired an engaging text with funny, kid-friendly illustrations to reveal that a sponge is not just a bath toy. Sploosh! Splash! Dribble! Did you know your bath sponge once lived in the sea? Sponges come in all shapes, colors, and sizes. Barbara Juster Esbensen and Holly Keller have paired an engaging text with funny, kid-friendly illustrations to reveal that a sponge is not just a bath toy.
Download or read book Sponges Are Skeletons written by Barbara Juster Esbensen and published by . This book was released on 1998-05-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains how sponges are animals that live in the ocean and how they are harvested and used by humans.
Download or read book Fossil and Recent Sponges written by Joachim Reitner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fossil and Recent Sponges contains articles on taxonomic, phylogenetic and ecological aspects of sponges of both biological and paleontological interest. They focus on three main topics: phylogeny and systematics, biology, and paleoecology of sponges. The reader is offered an overview over the most important aspects of current sponge research: - establishment of a new taxonomy based on mono phyletic groups (phylogenetic systematics) including recent and fossil taxa - new concepts of the biomineralisation of sponge skeletons - palaeoenvironmental analysis of fossil sponge buildups.
Download or read book Skeletons in confusion a review of astrophorid sponges with dicho calthrops as structural megascleres Porifera Demospongiae Astrophorida written by Rob van Soest and published by PenSoft Publishers LTD. This book was released on 2010-11-16 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sponges usually obtain their distinct shape and structure by arrangement of mineral or organic skeletal elements (spicules, ?bers). A small group, although provided with spicules, nevertheless is incapable of developing recognizable shapes because the type of structural spicules they have (equal-length four-rayed siliceous elements called calthrops) preclude the possibility of building a cohesive skeleton. Such sponges insinuate themselves in crevices and holes, diminishing the chance of their discovery and collection. The study addresses the taxonomy and biodiversity of two globally distributed genera of these sponges, Dercitus and Calthropella, including the description of ten new species (of 38 species so far documented). The two genera appear similar in spiculation, but they differ in the types of small spicules (microscleres). This induces a discussion of their phylogeny and classi? cation: are they closely related or is it convergent evolution? No proposals are made for a rearranged classi? cation pending independent evidence from molecular studies.
Download or read book Sponges written by Colleen Sexton and published by Bellwether Media. This book was released on 2012-01-01 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sponges can be almost any color and look like tubes, fans, vases, cups, or barrels. Most sponges stay in one place all their lives! Float along with a diversity of sponges and explore where they live, how their skeletons support their bodies, and how they eat.
Download or read book Sponges written by Patricia R. Bergquist and published by Univ of California Press. This book was released on 1978-01-01 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogue of the Fossil Sponges in the Geological Department of the British Museum Natural History written by George Jennings Hinde and published by . This book was released on 1883 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systema Porifera written by John N.A. Hooper and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1779 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research whilst compiling this book has uncovered a fauna about twice the size as that previously published in the literature and consequently Systema Porifera revises and stabilizes the systematics of the phylum to accommodate this new knowledge in a contemporary framework. Practical tools (key illustrations, descriptions of character) are provided to facilitate the assignment of approximately 680 extant and 100 fossil genera. Systema Porifera is unique making sponge taxonomy widely available at the practical level of classification (genera, families, order). It is a taxonomic revision of sponges and spongiomorphis (such as sphinctozoans and archaeocyathans) based on re-evaluation of type materials and evidence. It is also a practical guide to sponge identification providing descriptions and illustrations of characters and interpretation of their importance to systematics. Systema Porifera addresses many long standing nomenclatural problems and provides a sound baseline for future debate on sponges and their place in time and space. Systema Porifera describes 3 classes, 7 subclasses, 24 orders, 127 families and 682 valid genera of extant sponges (with over 1600 nominal generic names and an additional 500 invalid names treated). Treatment of the fossil fauna is less comprehensive or critical, although 6 classes, 30 orders, 245 families and 998 fossil genera are mentioned. Keys to all recent and many fossil taxa are provided.
Download or read book Catalogue of the Fossil Sponges in the Geological Department of the British Museum Natural History With Descriptions of New and Little Known Species written by Anonymous and published by BoD – Books on Demand. This book was released on 2024-02-28 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint of the original, first published in 1883.
Download or read book The Skeleton and Classification of Calcareous Sponges written by George Parker Bidder and published by . This book was released on 1898 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil and Recent Sponges written by Joachim Reitner and published by Springer. This book was released on 1991-07-30 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fossil and Recent Sponges contains articles on taxonomic, phylogenetic and ecological aspects of sponges of both biological and paleontological interest. They focus on three main topics: phylogeny and systematics, biology, and paleoecology of sponges. The reader is offered an overview over the most important aspects of current sponge research: - establishment of a new taxonomy based on mono phyletic groups (phylogenetic systematics) including recent and fossil taxa - new concepts of the biomineralisation of sponge skeletons - palaeoenvironmental analysis of fossil sponge buildups.
Download or read book A Monograph of the British Fossil Sponges written by George Jennings Hinde and published by . This book was released on 1912 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Sponges Chemicobiological and Biomedical Applications written by Ramjee Pallela and published by Springer. This book was released on 2016-11-17 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main focus of this book entitled is to provide an up-to-date coverage of marine sponges and their significance in the current era. This book is an attempt to compile an outline of marine sponge research to date, with specific detail on these bioactive compounds, and their pharmacological and biomedical applications. The book encompasses twenty chapters covering various topics related to Marine Sponges. Initial couple of chapters deal about the worldwide status of marine sponge research, the recent findings regarding dynamics of sponges, and several interesting research areas, that are believed to be deserving of increased attention. Variety of sponges, their toxicology, metagenomics, pharmaceutical significance and their possible applications in biomedicine has been discussed in detail. The second half of this part includes chapters on chemical ecology of marine sponges followed by the discussion on importance of bioeroding sponges in aquaculture systems. The following four chapters of the book deal majorly with the chemical molecules of marine sponges. In the fifth chapter, marine sponge-associated actinobacteria and their pysicochemical properties have been discussed followed by their bioactive potential. The biological application of marine sponges has been presented in later chapters with the classification of biologically active compounds being explored in detail. The second half of the book presents the vast repertoire of secondary metabolites from marine sponges, which include terpenoids, heterocycles, acetylenic compounds, steroids and nucleosides. Further, the bioactive potential of these compounds has also been discussed. One of the constituent chapter elaborates the bioactive alkaloids from marine sponges namely, pyridoacridine, indole, isoquinolene, piperidene, quinolizidine, steroidal and bromotyrosine alkaloids isolated from them. In the next couple of chapters, important sponge polymers and the anticancer effects of marine sponge compounds have been presented. The most interesting aspect of sponge biology is their use in biomedical arena. An effort has been made in this book, to cover the major constituents of sponges and their biomedical potentials. The major portion of sponge body is composed of collagen and silica and used in tissue engineering as scaffold material. This part of the book compiles chapters delineating the isolation of sponge biomaterials including collagen and their use in medical diagnostics. Overall, this book would be an important read for novice and experts in the field of sponge biology.
Download or read book Silicon and Siliceous Structures in Biological Systems written by T.L. Simpson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication of this book was undertaken with two purposes in view: to bring together informatian on the deposition by living organ isms of unique skeletal structures composed of amorphous silica, and to review recent data on the involvement of silicon in physiological and biochemical processes. Although widely varying viewpoints are represented, all the contributors are very interested in the events in volved in the formatian of siliceaus structures and their function. Data presented deal with these questions in a variety of plant and animal systems, and at levels ranging from the evolutionary to the biochemical and ultrastructural. Innovations in electron microscopy and, indeed, the advent of electron microscopy itself, have stimulated many ultra structural studies of silica deposition, work which has deepened and widened the interest in those organisms which routinely produce "glassy skeletons. " The question of how silicon participates in biological systems in volves a spectrum of fields that indudes the chemistry of silicon per se, its biogeochemistry, biochemistry, ecology, and so forth. In this book, however, attention is focused up on the biological aspects of silicon and siliceous structures, with emphasis on the evolutian, phylogeny, morphology, and distribution of siliceaus structures, on the cellular as peets of silica deposition, and on the physiological and biochemical roles of silicon. This volume represents the first compilatian of such data. Because such a variety of subjects and fields are covered, the reader will have to glean for himself some of the comparative aspects of the data.
Download or read book A Treatise on Zoology written by Sir Edwin Ray Lankester and published by . This book was released on 1900 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Skeletons of two Ordovician Anthaspidellid Sponges written by Theo M.G. van Kempen and published by . This book was released on 1980 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ure s Dictionary of Arts Manufactures and Mines Edited by R Hunt Fifth Edition Rewritten and Enlarged written by Andrew Ure and published by . This book was released on 1867 with total page 1140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
