Download or read book Amphioxus Vertebrata written by Adam Sedgwick and published by . This book was released on 1905 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates written by Arthur Willey and published by . This book was released on 1894 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Student s Text book of Zoology Amphioxus Vertebrata written by Adam Sedgwick and published by . This book was released on 1905 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates written by Arthur Willey and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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...
Download or read book Amphioxus and the Ancestry of the Vertebrates microform written by Arthur 1867-1942 Willey and published by Legare Street Press. This book was released on 2021-09-09 with total page 346 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. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Amphioxus and the Ancestry of the Vertebrates microform written by Arthur 1867-1942 Willey and published by Legare Street Press. This book was released on 2021-09-10 with total page 346 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. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book A Student s Text Book of Zoology written by Arthur Everett Shipley and published by Nabu Press. This book was released on 2013-11-01 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Download or read book Cephalic Homologies written by Charles Sedgwick Minot and published by . This book was released on 1897 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Student s Text Book of Zoology written by Arthur Everett Shipley and published by Palala Press. This book was released on 2015-09-03 with total page 728 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.
Download or read book An Atlas of Comparative Vertebrate Histology written by Donald B. McMillan and published by Academic Press. This book was released on 2018-06-04 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlas of Comparative Vertebrate Histology looks at the histology of a wide range of vertebrates, representative of all the major classes and families, with examples ranging from amphioxus to primates. The authors focus their microscope on commonly seen vertebrates as well as ‘non-standard’ species, such as lamprey, hagfish, dogfish, skate, rock bass, cod, river catfish, toad, amphiuma, leopard and bull frog, garter and brown snake, Coturnix quail and cowbird. The study of comparative histology in the vertebrates helps students and researchers alike understand how various groups have addressed similar problems, opening doors to interesting research possibilities. Not all vertebrates follow the mammalian model of tissue and organ structure. When dealing with unique species, we see some structures taken beyond their ‘normal’ function. Comparative histology allows us to understand the structural responses underlying the physiology unique to each vertebrate group. Presents the histology of a wide range of vertebrates, representative of all the major classes and families, with examples ranging from amphioxus to primates Includes an image gallery with over 500 flat images and 50+ virtual microscopy slides Contains electronic content features cross linking between text, tables and the image gallery
Download or read book Evolution of the Chordate Body Plan written by Linda Zimmerman Holland and published by . This book was released on 2001 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Dissection of Vertebrates written by Gerardo De Iuliis and published by Elsevier. This book was released on 2006-08-03 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dissection of Vertebrates covers several vertebrates commonly used in providing a transitional sequence in morphology. With illustrations on seven vertebrates – lamprey, shark, perch, mudpuppy, frog, cat, pigeon – this is the first book of its kind to include high-quality, digitally rendered illustrations. This book received the Award of Excellence in an Illustrated Medical Book from the Association of Medical Illustrators. It is organized by individual organism to facilitate classroom presentation. This illustrated, full-color primary dissection manual is ideal for use by students or practitioners working with vertebrate anatomy. This book is also recommended for researchers in vertebrate and functional morphology and comparative anatomy. The result of this exceptional work offers the most comprehensive treatment than has ever before been available. Received the Award of Excellence in an Illustrated Medical Book from the Association of Medical Illustrators Expertly rendered award-winning illustrations accompany the detailed, clear dissection direction Organized by individual organism to facilitate classroom presentation Offers coverage of a wide range of vertebrates Full-color, strong pedagogical aids in a convenient lay-flat presentation
Download or read book Across the Bridge written by Henry Gee and published by University of Chicago Press. This book was released on 2018-07-04 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Addresses an important topic for biologists and zoologists about vertebrates’ place in the ‘grand scheme’ . . . genuinely witty and charming . . . magnificent.” —Neil J. Gostling, University of Southampton Our understanding of vertebrate origins and the backbone of human history evolves with each new fossil find and DNA map. Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and invertebrates remains vast and enigmatic. As Gee shows, even as scientific advances have falsified a variety of theories linking these groups, the extant relatives of vertebrates are too few for effective genetic analysis. Moreover, the more we learn about the species that do remain—from sea-squirts to starfish—the clearer it becomes that they are too far evolved along their own courses to be of much use in reconstructing what the latest invertebrate ancestors of vertebrates looked like. Fossils present yet further problems of interpretation. Tracing both the fast-changing science that has helped illuminate the intricacies of vertebrate evolution as well as the limits of that science, Across the Bridge helps us to see how far the field has come in crossing the invertebrate-to-vertebrate divide—and how far we still have to go. “A beautiful ode to some of the least appreciated animals . . . guides the reader joyfully through deuterostomes—weaving disparate elements of embryology, paleontology, and morphology into an unprecedented and accessible narrative.” —Jakob Vinther, University of Bristol
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.
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.
