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Author: D. C. Smith
Publisher: Elsevier
ISBN: 1483145727
Category : Science
Languages : en
Pages : 189
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Book Description
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.
Author: D. C. Smith
Publisher: Elsevier
ISBN: 1483145727
Category : Science
Languages : en
Pages : 189
Get Book Here
Book Description
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.
Author: T.L. Simpson
Publisher: Springer Science & Business Media
ISBN: 1461252148
Category : Science
Languages : en
Pages : 678
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Book Description
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.
Author: Prof. R.L.Kotpal
Publisher: Rastogi Publications
ISBN: 9788171339037
Category : Zoology
Languages : en
Pages : 908
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Book Description
Author: J. D. Smyth
Publisher: CUP Archive
ISBN: 9780521222839
Category : Science
Languages : en
Pages : 516
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Book Description
Author: G. A. Kerkut
Publisher: Elsevier
ISBN: 1483286193
Category : Science
Languages : en
Pages : 644
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Book Description
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.
Author: M. L. Narasaiah
Publisher: Discovery Publishing House
ISBN: 9788183562898
Category : Insects
Languages : en
Pages : 348
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Book Description
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.
Author: Vervoort
Publisher: BRILL
ISBN: 9004629408
Category : Science
Languages : en
Pages : 478
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Book Description
Author: W. Vervoort
Publisher: BRILL
ISBN: 9789004087811
Category : Reference
Languages : en
Pages : 486
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Book Description
Author: I.D. Bowen
Publisher: Springer Science & Business Media
ISBN: 9780412279706
Category : Science
Languages : en
Pages : 284
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Book Description
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.
Author: Robert G. Wetzel
Publisher: Academic Press
ISBN: 0080574394
Category : Science
Languages : en
Pages : 1023
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Book Description
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.
