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Author: Edwin Grant Conklin
Publisher:
ISBN:
Category : Cells
Languages : en
Pages : 362
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![The Relation of Nuclei and Cyptoplasm [sic] in the Intestinal Cells of Land Isopods PDF](https://books.google.com/books/content/images/frontcover/jSo-AQAAMAAJ?fife=w80-h100)
Author: Edwin Grant Conklin
Publisher:
ISBN:
Category : Cells
Languages : en
Pages : 362
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Don Rittner
Publisher: Infobase Publishing
ISBN: 1438109997
Category : Biology
Languages : en
Pages : 417
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Book Description
Contains approximately 800 alphabetical entries, prose essays on important topics, line illustrations, and black-and-white photographs.
Author: William Morton Wheeler
Publisher:
ISBN:
Category : Ants
Languages : en
Pages : 696
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Author: Nico J. Smit
Publisher: Springer
ISBN: 3030173852
Category : Science
Languages : en
Pages : 484
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This book offers the first comprehensive review of parasitic Crustacea, which are among the most successful and diverse parasites. Starting with an introductory chapter, followed by an historic overview and topic-specific chapters, each presenting a different aspect of parasitic crustacean biology, it enables readers to gain a better understanding of how these parasites function and allows direct comparisons between the different parasitic crustacean groups. The authors also discuss, in depth, the adaptations and interactions that have made parasitic Crustacea as successful as they are today, covering topics ranging from the history of their discovery, their biodiversity, phylogeny, evolution and life strategies to their role as vectors, or hosts of other organisms, and their significance in ecological processes. Consisting of ten chapters from leading international experts in the field, this volume offers a one-stop resource for all researchers, lecturers, students and practitioners.
Author:
Publisher: Elsevier
ISBN: 0080541348
Category : Science
Languages : en
Pages : 477
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Book Description
This text presents an up-to-date account of the soft-scale insects, "Coccidae", and covers almost the entire spectrum of the knowledge of this insect family. It is divided into three sections, covering: soft scale insects; their natural enemies; and damage and control.
Author: Peter Castro
Publisher: BRILL
ISBN: 900419083X
Category : Science
Languages : en
Pages : 1233
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Book Description
This volume, 9C, in two parts, covers the Brachyura. With the publication of the ninth volume in the Treatise on Zoology: The Crustacea, we departed from the sequence one would normally expect. Some crustacean groups, mainly comprising the Decapoda, never had a French version produced, and the organization and production of these “new” chapters began independently from the preparation of the other chapters and volumes. Originally envisioned to encompass volume 9 of the series, it quickly became evident that the depth of material for such a volume must involve the printing of separate fascicles. The new chapters have now been completed, and the production of volume 9 was started while volumes 3 through 8 were (and in part still are) in preparation; with this vol. 9C-I & II this volume 9 is now concluded; vols. 1-5 have also been published and vols. 6-8 are being prepared.
Author: Scott S. Pitnick
Publisher: Academic Press
ISBN: 0080919871
Category : Science
Languages : en
Pages : 683
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Book Description
Sperm Biology represents the first analysis of the evolutionary significance of sperm phenotypes and derived sperm traits and the possible selection pressures responsible for sperm-egg coevolution. An understanding of sperm evolution is fast developing and promises to shed light on many topics from basic reproductive biology to the evolutionary process itself as well as the sperm proteome, the sperm genome and the quantitative genetics of sperm. The Editors have identified 15 topics of current interest and biological significance to cover all aspects of this bizarre, fascinating and important subject. It comprises the most comprehensive and up-to-date review of the evolution of sperm and pointers for future research, written by experts in both sperm biology and evolutionary biology. The combination of evolution and sperm is a potent mix, and this is the definitive account. - The first review survey of this emerging field - Written by experts from a broad array of disciplines from the physiological and biomedical to the ecological and evolutionary - Sheds light on the intricacies of reproduction and the coevolution of sperm, egg and reproductive behavior
Author: Bernard John
Publisher: Springer
ISBN: 9783211808818
Category : Science
Languages : en
Pages : 210
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Book Description
material can serve both autocatalytic and heterocatalytic functions. Thus not only is it unique in itB capacity for self-replication but its base sequence determines the specificity of proteins. And enzyme proteins are immediately responsible for the peripheral metabolism which enables the organism to impose its own kind of order on the raw materials it absorbs. The course of development is determined not only by the nature of the genetic material but by its over-all amount and the relative frequency of the different functional units. Differential rates of epigenetic activity matter also. In theory, therefore, differential development within or even between individuals could be determined by the differential replication of the various genetic elements or by their differential activity. And further variation could arise by the differential transmission of these elements between cells. Indeed it would appear that all these possibilities are exploited by living systems. If like is to beget like, however, any genetic change which occurs during development must be undone, or else germinal units preserved from change must be set aside. As far as is known, genetic changes, even those involving only quantity or relative amounts, are reversible to only a very limited extent so that a change once done cannot be undone. Consequently genetic changes during the development of presumptive germ-lines are either non existant or minor and confined to a small class of un aggregated deter minants.
Author:
Publisher:
ISBN:
Category : Health risk assessment
Languages : en
Pages : 412
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