Sex and Death in Protozoa

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Author :
Publisher : Cambridge University Press
ISBN 13 : 0521361419
Total Pages : 220 pages
Book Rating : 4.5/5 (213 download)

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Book Synopsis Sex and Death in Protozoa by : Graham Bell

Download or read book Sex and Death in Protozoa written by Graham Bell and published by Cambridge University Press. This book was released on 1988 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is ageing inevitable, or can senescence and death be evaded? Large animals and plants always age if they live long enough; even individual cells from their bodies cannot continue living and dividing indefinitely. Whether or not single-celled organisms also age and die, and what relation sex bore to the process of senescence, was the subject of vigorous debate and experimentation early in the last century. In this book, Dr Bell disinters and reanalyzes these forgotten experiments, and argues that protozoan lineages do indeed senesce, as the result of an accumulated load of mutations that can be shed only through sexual reproduction. This unexpected connection between sex and death is the central theme of a book that will interest all students of evolutionary biology, sexuality and senescence.

The Biology of Death

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Author :
Publisher : Cornell University Press
ISBN 13 : 9780801441189
Total Pages : 236 pages
Book Rating : 4.4/5 (411 download)

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Book Synopsis The Biology of Death by : André Klarsfeld

Download or read book The Biology of Death written by André Klarsfeld and published by Cornell University Press. This book was released on 2004 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do we die? Do all living creatures share this fate? Is the body's slow degradation with the passage of time unavoidable, or can the secrets of longevity be unlocked? Over the past two decades, scientists studying the workings of genes and cells have uncovered some of the clues necessary to solve these mysteries. In this fascinating and accessible book, two neurobiologists share the often-surprising findings from that research, including the possibility that aging and natural death may not be forever a certainty for most living beings. André Klarsfeld and Frédéric Revah discuss in detail the latest scientific findings and views on death and longevity. They challenge many popular assumptions, such as the idea that the death of individual organisms serves to rejuvenate species or that death and sexual reproduction are necessarily linked. Finally, they describe current experimental approaches to postpone natural death in lower organisms as well as in mammals. Are all organisms that survive until late in life condemned to a "natural" death, as a consequence of aging, even if they live in a well-protected, supportive environment? The variability of the adult life span--from a few hours for some insects to more than a millennium for the sequoia and thirteen times that for certain wild berry bushes--challenges the notion that death is unavoidable. Evolutionary theory helps explain why and how some species have achieved biological mechanisms that seemingly allow them to resist time. Death cannot be understood without looking into cells--the essential building blocks of life. Intriguingly, at the level of cells, death is not always an accident; it is often programmed as an indispensable aspect of life, which benefits the organism as a whole.

Advances in Microbial Ecology

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Publisher : Springer Science & Business Media
ISBN 13 : 1461528585
Total Pages : 445 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Advances in Microbial Ecology by : J.G. Jones

Download or read book Advances in Microbial Ecology written by J.G. Jones and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kevin Marshall is a hard act to follow. Volume 13 of Advances in Microbial Ecology has been produced by a new editorial board, and we, the members of that board, are delighted to have the opportunity to pay tribute to Kevin's achievements. In his time as Series Editor, the quality of the chapters submitted and the range of subject matter covered have ensured an expanding and more stimulated readership. This represents a considerable achievement, given the growth in the number of review volumes and the increasing tendency for journals to publish review articles. The achievement was reached not only through metic ulous attention to quality and detail but also by providing a forum for the expression of views, information, and results that would stimulate discussion. Advances in Microbial Ecology will continue to provide such a focus, although, because of the frequency of publication, it would not be practicable to introduce a "reply" or "comment" section. Although we do not deliberately aim to provide a forum for controversy, we encourage speculation based on sound scientific arguments. In addition, we would like to encourage authors to offer chapters for consideration. In the past, the volumes have largely comprised invited chapters. With the best will in the world, an editorial board of four cannot claim adequate coverage of such a vast and rapidly developing research area. We would there fore welcome submission of outline plans for chapters, which should be sent to the Editor.

Eukaryotic Microbes

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Publisher : Academic Press
ISBN 13 : 0123838762
Total Pages : 496 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis Eukaryotic Microbes by : Moselio Schaechter

Download or read book Eukaryotic Microbes written by Moselio Schaechter and published by Academic Press. This book was released on 2012 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eukaryotic Microbes presents chapters hand-selected by the editor of the Encyclopedia of Microbiology, updated whenever possible by their original authors to include key developments made since their initial publication. The book provides an overview of the main groups of eukaryotic microbes and presents classic and cutting-edge research on content relating to fungi and protists, including chapters on yeasts, algal blooms, lichens, and intestinal protozoa. This concise and affordable book is an essential reference for students and researchers in microbiology, mycology, immunology, environmental sciences, and biotechnology. Written by recognized authorities in the field Includes all major groups of eukaryotic microbes, including protists, fungi, and microalgae Covers material pertinent to a wide range of students, researchers, and technicians in the field

The Molecular Basis of Sex and Differentiation

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461252601
Total Pages : 228 pages
Book Rating : 4.4/5 (612 download)

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Book Synopsis The Molecular Basis of Sex and Differentiation by : Milton H. Saier

Download or read book The Molecular Basis of Sex and Differentiation written by Milton H. Saier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Man's mind stretched to a new idea never goes back to its original dimensions Oliver Wendell Holmes Our current understanding of sex and biological differentiation results from the application of three principal experimental approaches to these subjects: those of the physiologist, the biochemist, and the geneticist. These three approaches are illustrated by the materials presented in the chapters of this volume. Chapters 1-5 emphasize conceptualization of developmental processes, describing systems principally from the standpoint of the physiologist. Structures and functions are defined with only occasional reference to specific molecular details. Chapters 6- 10 present the views of the biochemist, attempting to describe functions influ encing or regulating cellular behavior at the molecular level. And Chapters 11- 14 illustrate the approaches of the modem-day geneticist in his attempts to gain a detailed understanding of processes controlling gene expression. While it is possible to delineate these three major sections, each emphasizing a distinct experimental approach, it must be realized that the yield of knowledge increases exponentially with the number of experimental approaches available to the investigator. Information resulting from the application of each of these approaches must converge to give the same answers for anyone biological phenomenon in anyone experimental system. Further, if we can learn of details regarding a particular process by applying different experimental approaches, our postulates concerning the underlying molecular mechanisms are likely to be more accurate. But biological systems are not unrelated.

Protozoa

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Author :
Publisher :
ISBN 13 : 9781427615732
Total Pages : 0 pages
Book Rating : 4.6/5 (157 download)

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Book Synopsis Protozoa by : Gary Nathan Calkins

Download or read book Protozoa written by Gary Nathan Calkins and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an unabridged reprint of the Columbia University Biological Series edition. Chapter titles are ...(1) Historical Introduction ...(2) General ...(3) The Sarcodina ...(4) The Mastigophora ...(5) The Sporozoa ...(6) The Infusoria ...(7) Sexual Phenomena in the Protozoa ...(8) Special Morphology of the Protozoan Nucleus ...(9) Some Problems in the Physiology of the Protozoa.

Germline Development

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Publisher : John Wiley & Sons
ISBN 13 : 0470514582
Total Pages : 332 pages
Book Rating : 4.4/5 (75 download)

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Book Synopsis Germline Development by : Joan Marsh

Download or read book Germline Development written by Joan Marsh and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connects classical cellular descriptive studies with more recent work on the molecular and genetic aspects regarding germline development. Prominent scientists discuss research on a range of organisms including insects, worms, birds, fish, amphibia, mammals and green algae. Specification of germ cells, their migration to the gonads and subsequent interactions with the soma and evolutionary factors of their segregation are among the topics covered.

Aging of the Genome

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Author :
Publisher : OUP Oxford
ISBN 13 : 0191524581
Total Pages : 384 pages
Book Rating : 4.1/5 (915 download)

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Book Synopsis Aging of the Genome by : Jan Vijg

Download or read book Aging of the Genome written by Jan Vijg and published by OUP Oxford. This book was released on 2007-01-25 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aging has long since been ascribed to the gradual accumulation of DNA mutations in the genome of somatic cells. However, it is only recently that the necessary sophisticated technology has been developed to begin testing this theory and its consequences. Vijg critically reviews the concept of genomic instability as a possible universal cause of aging in the context of a new, holistic understanding of genome functioning in complex organisms resulting from recent advances in functional genomics and systems biology. It provides an up-to-date synthesis of current research, as well as a look ahead to the design of strategies to retard or reverse the deleterious effects of aging. This is particularly important in a time when we are urgently trying to unravel the genetic component of aging-related diseases. Moreover, there is a growing public recognition of the imperative of understanding more about the underlying biology of aging, driven by continuing demographic change.

Physiological Basis of Aging and Geriatrics

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Author :
Publisher : CRC Press
ISBN 13 : 1420007092
Total Pages : 426 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Physiological Basis of Aging and Geriatrics by : Paola S. Timiras

Download or read book Physiological Basis of Aging and Geriatrics written by Paola S. Timiras and published by CRC Press. This book was released on 2007-08-16 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensively revised and updated to reflect the current state of knowledge in the study of aging, this Fourth Edition offers a complete profile of the aging process at all levels, from molecules and cells to demography and evolution. Written by international experts in current basic and clinical aging research, this text includes aspects of individual, comparative, and differential aging, and discussions of theories and mechanisms of aging. This invaluable reference illustrates how bodily systems, organs, and functions are affected with aging, describes how genetic and environmental factors influence age-related changes, and addresses some of the clinical consequences of these changes for health and longevity. Well illustrated, with numerous tables and graphs, this book presents up-to-date information from internationally renowned experts in various bio-medical fields.

Ecology and Classification of North American Freshwater Invertebrates

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Author :
Publisher : Elsevier
ISBN 13 : 0080530672
Total Pages : 1056 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Ecology and Classification of North American Freshwater Invertebrates by : James H. Thorp

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 1056 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

The Evolution of Sex

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Author :
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.X/5 ( download)

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Book Synopsis The Evolution of Sex by : Sir Patrick Geddes

Download or read book The Evolution of Sex written by Sir Patrick Geddes and published by . This book was released on 1889 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ecology of Protozoa

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Publisher : Springer Science & Business Media
ISBN 13 : 3662068176
Total Pages : 205 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Ecology of Protozoa by : Tom M. Fenchel

Download or read book Ecology of Protozoa written by Tom M. Fenchel and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for ecologists and protozoologists. Ecologists who study environments and biotic communities in which protozoa are im portant should find this book especially useful. During the last decade it has become clear that protozoa play important roles in natural eco systems, but few ecologists have a feeling for the functional properties and the diversity of these organisms. Protozoa pose or exemplify many general problems of population and community ecology, and of evo lutionary biology. In most respects the general ecological properties of protozoa are not fundamentally different from those of larger organisms; yet, due to their small size, short generation times, and ubiquitous oc currence they often present ecological phenomena in a new and dif ferent light. To this should be added that protozoa are well-suited for experimental work. Despite these advantages, the study of protozoa has played a relatively modest role in the development of ecology and ev olutionary biology, primarily, I believe, because most ecologists are unfamiliar with these organisms. I hope this book will attract more attention to these favorable characteristics of protozoa. I also hope that this book may make protozoologists aware of new aspects of their pet organisms. For a long time (that is, until the fun damental distinction between prokaryotic and eukaryotic cells was rec ognized) protozoa were believed to represent the simplest form of life. They were therefore extensively used for the experimental study of basic questions of cell biology.

Survival and Reproduction

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Author :
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Survival and Reproduction by : Hermann Reinheimer

Download or read book Survival and Reproduction written by Hermann Reinheimer and published by . This book was released on 1910 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sex, Its Origin and Determination

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Author :
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Sex, Its Origin and Determination by : Thomas E. Reed

Download or read book Sex, Its Origin and Determination written by Thomas E. Reed and published by . This book was released on 1913 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sex on Earth

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Publisher : Bloomsbury Publishing
ISBN 13 : 1408193426
Total Pages : 246 pages
Book Rating : 4.4/5 (81 download)

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Book Synopsis Sex on Earth by : Jules Howard

Download or read book Sex on Earth written by Jules Howard and published by Bloomsbury Publishing. This book was released on 2014-10-23 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: A journey of discovery through the ins and outs of reproduction in the animal kingdom 'Written with Bill Bryson–like wit' Booklist 'A writer who blends professional expertise in zoology with charm, wit, and a cockeyed sense of humor. What better guide through nature's red-light district could one ask for?' Natural History Magazine 1,000 million years ago, a sexual revolution occurred on Earth. Sex happened for the first time; from this moment the world became ever more colourful and bizarre, ringing with elaborate songs and dances, epic battles, and rallying cries as the desires of males and females collided, generation after generation. All of your ancestors took part and succeeded – an unbroken chain of sex right back to the dawn of complex life on Earth. Well done you. Well done everything. The world in which we live rings, bleeds, and howls with sex. It's everywhere. Right now warring hordes are locking horns, preening feathers, rampaging lustfully across the savanna, questioning the fidelity of the ones they love. Birds are singing, flowers bloom. A million females choose; a billion penises ejaculate (or snap off); a trillion sperm battle, block and tackle. Written in a brilliantly engaging style by biologist Jules Howard, this fascinating and highly readable work covers the how and why of sex on Earth, in all its diversity. From sperm wars to cuckoldry, hermaphrodites and virgin births, spent males, racy harems, clitoral births, hips, breasts and birdsong, penis-percussion, and those riskiest and most elusive of all traits, monogamy and true love, all this and more is discussed in Sex on Earth, as Jules takes us on a voyage of discovery of the ins and outs of animal reproduction.

Protozoology

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Author :
Publisher : Thieme Medical Publishers
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.3/5 (97 download)

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Book Synopsis Protozoology by : Klaus Hausmann

Download or read book Protozoology written by Klaus Hausmann and published by Thieme Medical Publishers. This book was released on 1996 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introductory textbook "Protozoology" deals with one of the five kingdoms of living organisms: the Protista. The text is intended to be used by upper division college students & graduates who are enrolled in protozoa. It also can be used as reference text which outlines this group for researchers, instructors, or authors of textbooks directed at a more general audience.

Bible Review

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Publisher :
ISBN 13 :
Total Pages : 698 pages
Book Rating : 4.:/5 (28 download)

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Book Synopsis Bible Review by :

Download or read book Bible Review written by and published by . This book was released on 1908 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: