Download or read book Nutrition in the Lower Metazoa written by D. C. Smith and published by Elsevier. This book was released on 2013-10-22 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition in the Lower Metazoa contains the proceedings of a meeting held at the University of Caen, France on September 11-13, 1979. Organized into 14 chapters, this book begins with a discussion of the phagocytosis in Polycelis tenuis and adaptational aspects in feeding in freshwater triclads. Subsequent chapters explore selection in sponge feeding processes; nutrition in symbiotic Turbellaria; some effects of diet on the biology of the rotifers; and the role of nutrition in the establishment of the green hydra symbiosis. The phosphorus economy of the green hydra symbiosis and the nutrition of marine sponges are also explained.
Download or read book The Cell Biology of Sponges written by T.L. Simpson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modem biology owes much to the study of favorable model systems which fa cilitates the realization of critical experiments and results in the introduction of new concepts. Examples of such systems are numerous and studies of them are regularly recognized by the scientific community. The 1983 Nobel Prize in Med icine and Physiology is a magnificent example in which com plants served as the experimental model. In a manner somewhat more modest, other biological systems have attracted recognition due to their critical phylogenetic position, or indeed because of their uniqueness which distinguishes them from all other organisms. Assuredly, among the whole assemblage ofliving organisms, sponges stand out as worthy of interest by scientists: they are simultaneously models, an important group in evolution, and animals unlike others. As early as the beginning of this century, sponges appeared as exceptional models for the study of phenomena of cell recognition. Innumerable works have been dedicated to understanding the mechanisms which assure the reaggregation of dissociated cells and the reconstitution of a functional individual. Today, re search on these phenomena is at the ultimate, molecular level. Through an as semblage of characteristics the sponges are, based upon all available evidence, the most primitive Metazoans. Their tissues-perhaps one can say their cell groups-are loosely assembled (they possess no tight or gap junctions), cell dif ferentiation appears highly labile, and they do not develop any true organs. But, they are most certainly Metazoans.
Download or read book Modern Text Book of Zoology Invertebrates written by Prof. R.L.Kotpal and published by Rastogi Publications. This book was released on 2012 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physiology of Trematodes written by J. D. Smyth and published by CUP Archive. This book was released on 1983-12-29 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integument Respiration and Circulation written by G. A. Kerkut and published by Elsevier. This book was released on 2013-10-22 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is primarily devoted to the analysis of the integument (epidermis, cuticle), the fat body, the connective tissues, the circulatory and respiratory systems. It discusses the organization and functioning of the insect systems implicated in growth, intermediary metabolism, homeostasis and defence mechanisms. Much of the volume is devoted to anatomical and structural developments, which appear as introductions to corresponding biochemical and physiological aspects. Many diagrams, drawings and photographs accompany the text throughout. Altogether, this volume presents a clear and up-to-date account of the most recent and important discoveries in the fields and shows the extent of progress which is expected in the near future.
Download or read book Insect Physiology written by M. L. Narasaiah and published by Discovery Publishing House. This book was released on 2007 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Women and Development Poverty Eradication Design and Methodology, Women Development Programmes and Five Years Plans, Origin and Process of DWCRA and Self-Help Groups, Characteristics and Performance of Sample DWCRA and SHG s in The Study Area Kurnool District, Income and Employment Generation and Capacity Building, Poverty Alleviation through Social Mobilisation the Kurnool Strategy, Problems of Women Development with Reference to the DWCRA/SHG Approach, Summary and Conclusions.
Download or read book Bibliography of Copepoda Up to and Including 1980 Part III S Z written by Vervoort and published by BRILL. This book was released on 2023-10-09 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Copepoda Up to and Including 1980 written by W. Vervoort and published by BRILL. This book was released on 1988-06-01 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Programmed Cell Death in Tumours and Tissues written by I.D. Bowen and published by Springer Science & Business Media. This book was released on 1990-07-31 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently there have been many advances in the understanding of the genetic basis of development and regular breakthroughs are being made in the field of tumour cell targeting. Both these areas of research are coming together in terms of their perception of programmed cell death.
Download or read book Limnology written by Robert G. Wetzel and published by Academic Press. This book was released on 2001-05-10 with total page 1023 pages. Available in PDF, EPUB and Kindle. Book excerpt: Limnology is the study of the structural and functional interrelationships of organisms of inland waters as they are affected by their dynamic physical, chemical, and biotic environments. Limnology: Lake and River Ecosystems, Third Edition, is a new edition of this established classic text. The coverage remains rigorous and uncompromising and has been thoroughly reviewed and updated with evolving recent research results and theoretical understanding. In addition, the author has expanded coverage of lakes to reservoir and river ecosystems in comparative functional analyses.
Download or read book Ecology and Classification of North American Freshwater Invertebrates written by James H. Thorp and published by Elsevier. This book was released on 2001-05-11 with total page 1073 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First Edition of Ecology and Classification of North American Freshwater Invertebrates has been immensely popular with students and researchers interested in freshwater biology and ecology, limnology, environmental science, invertebrate zoology, and related fields. The First Edition has been widely used as a textbook and this Second Edition should continue to serve students in advanced classes. The Second Edition features expanded and updated chapters, especially with respect to the cited references and the classification of North American freshwater invertebrates. New chapters or substantially revised chapters include those on freshwater ecosystems, snails, aquatic spiders, aquatic insects, and crustaceans. - Most up-to-date and informative text of its kind - Written by experts in the ecology of various invertebrate groups, coverage emphasizes ecological information within a current taxonomic framework - Each chapter contains both morphological and taxonomic information, including keys to North American taxa (usually to the generic level) as well as bibliographic information and a list of further readings - The text is geared toward researchers and advanced undergraduate and graduate students
Download or read book Helgolaender Meeresuntersuchungen COTF BIO BD written by and published by . This book was released on 1985 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Rhizostomeaen Jellyfish Research written by and published by Elsevier. This book was released on 2024-11-15 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Rhizostomeaen Jellyfish Research, Volume 98 in the Advances in Marine Biology series, the latest release in this serial that highlights new advances in the field, includes comprehensive chapters written by an international board of authors. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Advances in Marine Biology series
Download or read book Invertebrate Biology written by P. Calow and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Courses on the invertebrates have two principal aims: (1) to introduce students to the diversity of animal life and (2) to make them aware that organisms are marvellously integrated systems with evolutionary pasts and ecological presents. This text is concerned exclusively with the second aim and assumes that the reader will already know something about the diversity and classification of invertebrates. Concepts of whole-organism function, metabolism and adaptation form the core of the subject-matter and this is also considered in an ecological setting. Hence, the approach is multi-disciplinary, drawing from principles normally restricted to comparative morphology and physiology ,ecology and evolutionary biology. Invertebrate courses, as with all others in a science curriculum, also have another aim - to make students aware of the general methods of science. And these I take to be associated with the so-called hypothetico deductive programme. Here, therefore, I make a conscious effort to formulate simple, some might say naive, hypotheses and to confront them with quantitative data from the real world. There are, for example, as many graphs in the book as illustrations of animals. My aim, though, has not been to test out the principles of Darwinism, but rather to sharpen our focus on physiological adaptations, given the assumption that Darwinism is approximately correct. Whether or not I succeed remains for the reader to decide.
Download or read book Syncytia Origin Structure and Functions written by Malgorzata Kloc and published by Springer Nature. This book was released on 2023-12-25 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a current overview on the development, origin, structure, and functions of germline and somatic cell syncytia during embryogenesis and organogenesis. It also reviews pathogen-induced syncytia and the role of syncytial cells in cancer development. The book covers the following topics: germline syncytia, evolution, function and structure; syncytia in embryogenesis and development; the role of somatic cell fusion in fungi, specialized somatic tissues, host defense and adaptation; syncytia induced by viruses and parasites; syncytia and circulating hybrid cells in cancer and other pathological conditions; It also discusses how the genomic adaptations of microorganisms to extreme habitats can prompt the evolution of mononuclear and multinucleate/syncytial cells. The book offers a fresh outlook on syncytia's role in various processes: embryogenesis, organogenesis, adaptation, host defense, and development of specialized tissues. It highlights the importance of syncytia under physiological and pathological conditions.
Download or read book A Functional Biology of Sea Anemones written by J. Malcolm Shick and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: General Editor: Peter Calow, Department of Zoology, University of Sheffield, England The main aim of this series will be to illustrate and to explain the way organisms 'make a living' in nature. At the heart of this - their Junctional biology - is the way organisms acquire and then make use of resources in metabolism, movement, growth, reproduction, and so on. These processes will form the fundamental framework of all the books in the series. Each book will concentrate on a particular taxon (species, family, class or even phylum) and will bring together information on the form, physiology, ecology and evolutionary biology of the group. The aim will be not only to describe how organisms work, but also to consider why they have come to work in that way. By concentrating on taxa which are well known, it is hoped that the series will not only illustrate the success of selection, but also show the constraints imposed upon it by the physiological, morphological and developmental limitations of the groups. Another important feature of the series will be its organismic orientation. Each book will emphasize the importance of functional integration in the day-to-day lives and the evolution of organisms. This is crucial since, though it may be true that organisms can be considered as collections of gene determined traits, they nevertheless interact with their environment as integrated wholes and it is in this context that individual traits have been subjected to natural selection and have evolved.
Download or read book written by and published by . This book was released on 1990 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt:
