Ciliate Biodiversity and Evolution from Morphological, Genomic and Epigenomic Views PDF Download
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Author: Xiao Chen
Publisher: Frontiers Media SA
ISBN: 2889668452
Category : Science
Languages : en
Pages : 220
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Book Description
Author: Xiao Chen
Publisher: Frontiers Media SA
ISBN: 2889668452
Category : Science
Languages : en
Pages : 220
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Book Description
Author: Dirk Schulze-Makuch
Publisher: Springer
ISBN: 3319620452
Category : Science
Languages : en
Pages : 238
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Book Description
Are humans a galactic oddity, or will complex life with human abilities develop on planets with environments that remain habitable for long enough? In a clear, jargon-free style, two leading researchers in the burgeoning field of astrobiology critically examine the major evolutionary steps that led us from the distant origins of life to the technologically advanced species we are today. Are the key events that took life from simple cells to astronauts unique occurrences that would be unlikely to occur on other planets? By focusing on what life does - it's functional abilities - rather than specific biochemistry or anatomy, the authors provide plausible answers to this question. Systematically exploring the various pathways that led to the complex biosphere we experience on planet Earth, they show that most of the steps along that path are likely to occur on any world hosting life, with only two exceptions: One is the origin of life itself – if this is a highly improbable event, then we live in a rather “empty universe”. However, if this isn’t the case, we inevitably live in a universe containing a myriad of planets hosting complex as well as microbial life - a “cosmic zoo”. The other unknown is the rise of technologically advanced beings, as exemplified on Earth by humans. Only one technological species has emerged in the roughly 4 billion years life has existed on Earth, and we don’t know of any other technological species elsewhere. If technological intelligence is a rare, almost unique feature of Earth's history, then there can be no visitors to the cosmic zoo other than ourselves. Schulze-Makuch and Bains take the reader through the history of life on Earth, laying out a consistent and straightforward framework for understanding why we should think that advanced, complex life exists on planets other than Earth. They provide a unique perspective on the question that puzzled the human species for centuries: are we alone?
Author: John Tyler Bonner
Publisher: Princeton University Press
ISBN: 0691157014
Category : Science
Languages : en
Pages : 148
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Book Description
John Tyler Bonner here challenges a central tenet of evolutionary biology.
Author: W. Foissner
Publisher: Springer Science & Business Media
ISBN: 9048128013
Category : Science
Languages : en
Pages : 213
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Book Description
Conservation and biodiversity of protists The conservation of biodiversity is not just an issue of plants and vertebrates. It is the scarcely visible invertebrates and myriads of other microscopic organisms that are crucial to the maintenance of ecological processes on which all larger organisms and the composition of the atmosphere ultimately depend. Biodiversity and Conservation endeavours to take an holistic view of biodiversity, and when the opportunity arises to issue collections of papers dealing with too-often neglected groups of organisms. The protists, essentially eukaryotes that cannot be classi?ed in the kingdoms of animals, fungi, or plants, include some of the lea- known groups of organisms on earth. They are generally treated as a separate kingdom, commonly named Protista (or Protoctista) in textbooks, but in reality they are a mixture of organisms with disparate a?nities. Some authors have hypothesized that the numbers of protists are not especially large, and that many have extraordinarily wide distributions. However, the p- ture that unfolds from the latest studies discussed in this issue is di?erent. There are many species with wide ranges, and proportionately more cosmopolitan species than in macroorganism groups, as a result of their long evolutionary histories, but there are also de?nite patterns and geographical restrictions to be found. Further, some protists are linked to host organisms as mutualists or parasites and necessarily con?ned to the distributions of their hosts.
Author: Jan Sapp
Publisher: Oxford University Press
ISBN: 0195388496
Category : Science
Languages : en
Pages : 446
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Book Description
This book presents a history of microbial evolutionary biology from the 19th century to the present. It follows the research of molecular evolutionists who explore the origins of the genetic system and the primary life forms: three domains and multiple kingdoms, created by mechanisms very unlike those considered by Darwin and his followers.
Author: Jeroen C. J. M. van den Bergh
Publisher: Cambridge University Press
ISBN: 1108470971
Category : Nature
Languages : en
Pages : 575
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Book Description
A complete account of evolutionary thought in the social, environmental and policy sciences, creating bridges with biology.
Author: Lisa Bartee
Publisher:
ISBN: 9781636350417
Category :
Languages : en
Pages :
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Book Description
The Principles of Biology sequence (BI 211, 212 and 213) introduces biology as a scientific discipline for students planning to major in biology and other science disciplines. Laboratories and classroom activities introduce techniques used to study biological processes and provide opportunities for students to develop their ability to conduct research.
Author: Denis Lynn
Publisher: Springer Science & Business Media
ISBN: 1402082398
Category : Science
Languages : en
Pages : 627
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Book Description
distances between groups of ciliates were as vast as significant hurdles to obtain copyright permissions the genetic distances between plants and animals for the over 1,000 required illustrations, and I put – THE major eukaryotic kingdoms at that time! the publication schedule ahead of this element. I continued to collaborate with Mitch, and in There are a number of significant illustrated guides 1991 my first “molecular” Magisterial student, to genera and species that have recently been pub- Spencer Greenwood, published an article estab- lished. References are made to these throughout lishing 1990 or thereabouts as the beginning of the book as sources that readers can consult for this the “Age of Refinement” – the period when gene aspect of ciliate diversity. A future project that I am sequencing techniques would deepen our under- contemplating is an illustrated guide to all the valid standing of the major lines of evolution within ciliate genera.
Author: Bihari Lal Bhatia
Publisher:
ISBN:
Category : Protozoa
Languages : en
Pages : 578
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Book Description
Author: Claus Nielsen
Publisher: Oxford University Press on Demand
ISBN: 0199606021
Category : Science
Languages : en
Pages : 421
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Book Description
Using modern phylogenetic reasoning based on an extensive review of morphology, including ultrastructure, and embryology, each phylum is analysed to ascertain its monophyly and hence its ancestral characters.
