The Brain of Petromyzon PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Brain of Petromyzon PDF full book. Access full book title The Brain of Petromyzon by John Black Johnston. Download full books in PDF and EPUB format.
Author: John Black Johnston
Publisher:
ISBN:
Category : Brain
Languages : en
Pages : 106
Get Book Here
Book Description
Author: John Black Johnston
Publisher:
ISBN:
Category : Brain
Languages : en
Pages : 106
Get Book Here
Book Description
Author: R. E. Foreman
Publisher: Springer Science & Business Media
ISBN: 1461594537
Category : Medical
Languages : en
Pages : 460
Get Book Here
Book Description
What, precisely, is a primitive fish? Most biologists would agree that the living cyclostomes, selachians, crossopterygians, etc. cannot be considered truly primitive. However, they and the fossil record have served to provide the information which forms the basis for speculation concerning the nature of the original vertebrates. This symposium of biologists from a variety of disciplines was called together to create collectively, from the best available current evidence, a picture of the probable line of evolution of the prototype primitive fishes. The symposium was designed to follow one that took place in Stockholm in 1967, convened for a similar purpose, with about the same number of participants. It is a matter of interest that almost the entire 1967 symposium (Nobel Symposium 4) dealt only with the hard tissues, whether fossil or modern. In charting the course of the present symposium it was felt that the intervening years have produced numerous lines of new evidence that could be employed in the same way that a navigator determines his position. Each field, be it adult morphology, geology, ecology, biochemistry, development or physiology, generates evidence that can be extrapolated backward from existing vertebrate forms and forward from invertebrate forms. If the intersect of only two lines of evidence produces a navigational "fix" of rather low reliability, then an intersect, however unfocussed, of multiple guidelines from more numerous disciplines might provide a better position from which to judge early vertebrate history.
Author: Jørgen Mørup Jørgensen
Publisher: Springer Science & Business Media
ISBN: 9401158347
Category : Science
Languages : en
Pages : 577
Get Book Here
Book Description
The hagfishes comprise a uniform group of some 60 species inhabiting the cool or deep parts of the oceans of both hemispheres. They are considered the most primitive representatives of the group of craniate chordates, which - apart from the hagfishes that show no traces of verte brae -includes all vertebrate animals. Consequently the hagfishes have played and still playa central role in discussions concerning the evolution of the vertebrates. Although most of the focus on hagfishes may be the result of their being primitive, it should not be forgotten that, at the same time, they are specialized animals with a unique way of life that is interesting in its own right. It is now more than 30 years since a comprehensive treatise on hagfishes was published. The Biology of Myxine, edited by Alf Brodal and Ragnar Fange (Universitetsforlaget, Oslo, 1963), provided a wealth of information on the biology of hagfishes, and over the years remained a major source of information and inspiration to students of hagfishes.
Author: Sten Grillner
Publisher: Springer
ISBN: 1349091480
Category : Science
Languages : en
Pages : 719
Get Book Here
Book Description
Author: M. W. Hardisty
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 492
Get Book Here
Book Description
Author: Margaret F. Docker
Publisher: Springer
ISBN: 9401793069
Category : Science
Languages : en
Pages : 451
Get Book Here
Book Description
The book provides the most comprehensive review of lamprey biology since Hardisty and Potter’s five-volume “The Biology of Lampreys” published more than 30 years ago. Published in two volumes, it includes contributions from international lamprey experts, reviewing and providing new insights into the evolution, general biology, and management of lampreys worldwide. This first volume offers up-to-date chapters on the systematics, general biology, conservation status, and conservation needs of lampreys. It will serve as an important reference for researchers working on any aspect of lamprey biology and fishery managers whose mandate is to control or conserve lamprey populations.
Author: Ludwig Edinger
Publisher:
ISBN:
Category : Brain
Languages : en
Pages : 472
Get Book Here
Book Description
Author:
Publisher: Academic Press
ISBN: 0128098031
Category : Science
Languages : en
Pages : 504
Get Book Here
Book Description
Extracellular Matrix and Egg Coats, Volume 130, the latest release in the Current Topics in Developmental Biology series, highlights new advances in the field, with this new volume presenting interesting chapters on The Human Egg's Zona Pellucida, the Structure of Zona Pellucida Module Proteins, The Fish Egg's Zona Pellucidam The Chicken Egg's Zona Pellucidam The Marsupial Egg's Zona Pellucida, the Evolution of Zona Pellucida Proteins, The Mouse Egg's Zona Pellucida, Aspects of ECM, ECM and Morphogenesis, Collagen fibril assembly and function, The Ear's Tectorial Membrane, ECM and Cell Fate, and the Aspects of ECM. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Current Topics in Developmental Biology series - Updated release includes the latest information on the Extracellular Matrix in Development
Author: David O. Norris
Publisher: Academic Press
ISBN: 0123964652
Category : Science
Languages : en
Pages : 599
Get Book Here
Book Description
Vertebrate Endocrinology represents more than just a treatment of the endocrine system-it integrates hormones with other chemical bioregulatory agents not classically included with the endocrine system. It provides a complete overview of the endocrine system of vertebrates by first emphasizing the mammalian system as the basis of most terminology and understanding of endocrine mechanisms and then applies that to non-mammals. The serious reader will gain both an understanding of the intricate relationships among all of the body systems and their regulation by hormones and other bioregulators, but also a sense of their development through evolutionary time as well as the roles of hormones at different stages of an animal's life cycle. - Includes new full color format includes over 450 full color, completely redrawn image - Features a companion web site hosting all images from the book as PPT slides and .jpeg files - Presents completedly updated and revitalized content with new chapters, such as Endocrine Disrupters and Behavioral Endocrinology - Offers new clinical correlation vignettes throughout
Author: Walter Holbrook Gaskell
Publisher:
ISBN:
Category : Vertebrates
Languages : en
Pages : 564
Get Book Here
Book Description
