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Author : Berthold Hatschek
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.A/5 ( download)
Download or read book The Amphioxus and Its Development written by Berthold Hatschek and published by . This book was released on 1893 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hatschek Berthold
Publisher : Legare Street Press
ISBN 13 : 9781016464437
Total Pages : 0 pages
Book Rating : 4.4/5 (644 download)
Download or read book The Amphioxus and Its Development written by Hatschek Berthold and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Hatschek Berthold
Publisher : Scholar's Choice
ISBN 13 : 9781296316747
Total Pages : 208 pages
Book Rating : 4.3/5 (167 download)
Download or read book The Amphioxus and Its Development - Scholar's Choice Edition written by Hatschek Berthold and published by Scholar's Choice. This book was released on 2015-02-19 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Berthold Hatschek
Publisher :
ISBN 13 : 9781332298341
Total Pages : 212 pages
Book Rating : 4.2/5 (983 download)
Download or read book The Amphioxus and Its Development (Classic Reprint) written by Berthold Hatschek and published by . This book was released on 2015-08-05 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Amphioxus and Its Development Dr. Hatschek's investigations respecting the Amphioxus has hitherto not been accessible to that portion of the scientific world which does not read German. The following Translation has been undertaken in response to a generally expressed wish that this want should be remedied. My best thanks for valuable assistance are due to Dr. D'Amman, of Kew, and Professor Potter, of the College of Science in the University of Durham. The latter kindly undertook to revise the scientific terminology. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : An-Long Xu
Publisher : Elsevier
ISBN 13 : 0128096470
Total Pages : 306 pages
Book Rating : 4.1/5 (28 download)
Download or read book Amphioxus Immunity written by An-Long Xu and published by Elsevier. This book was released on 2015-12-31 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphioxus Immunity: Tracing the Origin of Human Immunity covers a remarkable range of information about Amphioxus and its evolutionary context. This compilation of what is currently known about Amphioxus, with a sharp focus on its immune system, includes 13 topics, such as: Amphioxus as a model for understanding the evolution of vertebrates basic knowledge of immunology immune organs and cells of amphioxus a genomic and transcriptomic view of the Amphioxus immunity pattern recognition system in Amphioxus transcription factors in Amphioxus the complement system of Amphioxus the oxidative burst system in Amphioxus immune effectors in Amphioxus lipid signaling of immune response in Amphioxus apoptosis in amphioxus; primitive adaptive immune system of Amphioxus and future research directions This valuable reference book is loaded with information that will be useful for anyone who wishes to learn more about the origin of vertebrates and adaptive immunity. Provides new evidence on the origin of the adaptive immune system, the evolution of innate immunity, and evolution-stage specific immune defense mechanisms Not only presents the cells and molecules involved in the adaptive immune response in Amphioxus, but also characterizes the origination and evolution of the gene families and pathways involved in innate immunity Includes much pioneering work, from the molecular, genomic, and cellular to the individual level
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Author : Berthold HATSCHEK
Publisher :
ISBN 13 :
Total Pages : 181 pages
Book Rating : 4.:/5 (561 download)
Download or read book The Amphioxus and Its Development ... Translated [from the German] and Edited by J. Tuckey ... With ... Illustrations written by Berthold HATSCHEK and published by . This book was released on 1893 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry J. Rice
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (173 download)
Download or read book Observations Upon the Habits, Structure and Development of the Amphioxus Lanceolatus written by Henry J. Rice and published by . This book was released on 1879* with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rudolf Nieuwenhuys
Publisher : Springer
ISBN 13 : 3319256939
Total Pages : 329 pages
Book Rating : 4.3/5 (192 download)
Download or read book Towards a New Neuromorphology written by Rudolf Nieuwenhuys and published by Springer. This book was released on 2015-12-28 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book demonstrates that the systematic study of gene expression patterns in embryonic and adult brains, in combination with selected data from earlier studies, can pave the way for a new neuromorphology, the most salient features of which may be summarized as follows: (1) Causal analysis of molecular patterning at neural plate and early neural tube stages has shown that the CNS is essentially organized into transverse neural segments or neuromeres and longitudinal zones which follow the curved axis of the brain. (2) The FMUs initially represent thin neuroepithelial fields; in the course of further development they are transformed into three-dimensional radial units, extending from the ventricular surface to the meningeal surface of the brain. (3) The principal histogenetic processes, including cellular proliferation, cell migration and differentiation, essentially take place within the confines of these radial units, controlled by characteristic sets of developmental regulatory genes. (4) Although most developing neurons migrate radially and settle within their own FMU, at many locations neuroblasts leave the FMU where they were produced and migrate tangentially to other nearby or remote territories, colonizing parts of foreign FMUs. (5) Many structural complexes in the adult brain, including the cerebral and cerebellar cortices, are the products of radial and tangential intermingling of migrated cell contingents. (6) By using appropriate molecular markers, all neuron types in the adult CNS can be traced back to a specific progenitor zone within a specific FMU, and the progeny of any FMU can be traced to their final positions with the help of selective labeling approaches. (7) Early outgrowing axons form bundles, which tend to pass close to the border zones of the radial units. By means of their molecularly diversely tuned growth cones, these extending axons decide how to behave at each boundary they encounter, sometimes even reorienting at right angles. Collectively these early axonal bundles form a checkerboard-like scaffold, which accentuates the molecular regionalization of the CNS and leads to the formation of topographically ordered synaptic fields. The book covers all of these aspects in detail, providing a morphologic model (blueprint) that highlights the natural coordinates of CNS structure resulting from the conserved molecularly controlled shaping phenomena within morphogenetic fields.
Author : Edwin Grant Conklin
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (115 download)
Download or read book The development of isolated and partially separated blastomeres of amphioxus written by Edwin Grant Conklin and published by . This book was released on with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gordon Ewart Newell
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (65 download)
Download or read book The Early Development of Amphioxus written by Gordon Ewart Newell and published by . This book was released on 1944 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zerina Johanson
Publisher : Cambridge University Press
ISBN 13 : 1107179440
Total Pages : 283 pages
Book Rating : 4.1/5 (71 download)
Download or read book Evolution and Development of Fishes written by Zerina Johanson and published by Cambridge University Press. This book was released on 2019-01-10 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: World-class palaeontologists and biologists summarise the state-of-the-art on fish evolution and development.
Author : Gordon Ewart Newell
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (314 download)
Download or read book The Early Development of Amphioxus. Reprinted from "The School Science Review", No. 85, October 1940 written by Gordon Ewart Newell and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gordon Ewart Newell
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (562 download)
Download or read book The Early Development of Amphioxus ... Reprinted from “The School Science Review,” etc written by Gordon Ewart Newell and published by . This book was released on 1941 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edmund Beecher Wilson
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (368 download)
Download or read book Amphioxus and the Mosaic Theory of Development written by Edmund Beecher Wilson and published by . This book was released on 1893 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arthur Willey
Publisher : Theclassics.Us
ISBN 13 : 9781230860145
Total Pages : 86 pages
Book Rating : 4.8/5 (61 download)
Download or read book Amphioxus and the Ancestry of the Vertebrates written by Arthur Willey and published by Theclassics.Us. This book was released on 2013-09 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 edition. Excerpt: ...in the details of its organisation, essentially resembles the embryos of the higher types. GENERAL CONSIDERATIONS. We will now pass on to give a general interpretation of some of the principal phenomena which are presented to us in the development of Amphioxus. Larval Asymmetry. By far the most prominent feature of the fully formed larva is its astounding asymmetry, and it is extremely important, from a morphological point of view, to form a just conception of it. The phenomenon of asymmetry manifests itself in the larva of Amphioxus under several very different aspects, and is occasioned by various causes. For convenience we may classify the forms of asymmetry which we have to consider under three main divisions, according to the type of organs involved. 1. Median Asymmetry.--This relates to such structures as lie normally in the middle line, whether dorsal or ventral, but which have been mechanically or correlatively displaced from their primitive position by the differential growth of neighbouring parts. Such are the olfactory pit and neuropore, the anus, the mouth, and the endostyle. All these are essentially and primordially median and unpaired structures. We have already dealt with the neuropore and anus, while the mouth and endostyle will be considered below. 2. Bilateral Asymmetry.--This refers to the alternation of paired structures, such as myotomes, spinal nerves, gillslits, and gonads, which we have already noted in the adult organisation. Primarily the organ of one side lies opposite to its antimere of the other side. By a secondary displacement it comes to alternate with it. 3. Unilateral Asymmetry.--Next to the asymmetrical mouth, this is perhaps the most striking form of asymmetry which the larva of Amphioxus exhibits. It...
Author : P.S.Verma
Publisher : S. Chand Publishing
ISBN 13 : 8121916399
Total Pages : 1095 pages
Book Rating : 4.1/5 (219 download)
Download or read book Chordate Zoology written by P.S.Verma and published by S. Chand Publishing. This book was released on 2010-12 with total page 1095 pages. Available in PDF, EPUB and Kindle. Book excerpt: FOR B.Sc & B.Sc.(Hons) CLASSES OF ALL INDIAN UNIVERSITIES AND ALSO AS PER UGC MODEL CURRICULUMN Contents: CONTENTS:Protochordates:Hemicholrdata 1.Urochordata Cephalochordata Vertebrates : Cyclostomata 3. Agnatha, Pisces Amphibia 4. Reptilia 5. Aves Mammalia 7 Comparative Anatomy:lntegumentary System 8 Skeletal System Coelom and Digestive System 10 Respiratory System 11. Circulatory System Nervous System 13. Receptor Organs 14 Endocrine System 15 Urinogenital System 16 Embryology Some Comparative Charts of Protochordates 17 Some Comparative Charts of Vertebrate Animal Types 18 Index.
Author : Noriyuki Satoh
Publisher : Academic Press
ISBN 13 : 0128030062
Total Pages : 222 pages
Book Rating : 4.1/5 (28 download)
Download or read book Chordate Origins and Evolution written by Noriyuki Satoh and published by Academic Press. This book was released on 2016-07-14 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chordate Origins and Evolution: The Molecular Evolutionary Road to Vertebrates focuses on echinoderms (starfish, sea urchins, and others), hemichordates (acorn worms, etc.), cephalochordates (lancelets), urochordates or tunicates (ascidians, larvaceans and others), and vertebrates. In general, evolution of these groups is discussed independently, on a larger scale: ambulacrarians (echi+hemi) and chordates (cephlo+uro+vert). Until now, discussion of these topics has been somewhat fragmented, and this work provides a unified presentation of the essential information. In the more than 150 years since Charles Darwin proposed the concept of the origin of species by means of natural selection, which has profoundly affected all fields of biology and medicine, the evolution of animals (metazoans) has been studied, discussed, and debated extensively. Following many decades of classical comparative morphology and embryology, the 1980s marked a turning point in studies of animal evolution, when molecular biological approaches, including molecular phylogeny (MP), molecular evolutionary developmental biology (evo-devo), and comparative genomics (CG), began to be employed. There are at least five key events in metazoan evolution, which include the origins of 1) diploblastic animals, such as cnidarians; 2) triploblastic animals or bilaterians; 3) protostomes and deuterostomes; 4) chordates, among deuterostomes; and 5) vertebrates, among chordates. The last two have received special attention in relation to evolution of human beings. During the past two decades, great advances have been made in this field, especially in regard to molecular and developmental mechanisms involved in the evolution of chordates. For example, the interpretation of phylogenetic relationships among deuterostomes has drastically changed. In addition, we have now obtained a large quantity of MP, evo-devo, and CG information on the origin and evolution of chordates. Covers the most significant advances in this field to give readers an understanding of the interesting biological issues involved Provides a unified presentation of essential information regarding each phylum and an integrative understanding of molecular mechanisms involved in the origin and evolution of chordates Discusses the evolutionary scenario of chordates based on two major characteristic features of animals—namely modes of feeding (energy sources) and reproduction—as the two main forces driving animal evolution and benefiting dialogue for future studies of animal evolution
