A Manual of the Sub-Kingdom Coelenterata (Classic Reprint) PDF Download
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Author: Joseph Reay Greene
Publisher: Forgotten Books
ISBN: 9780656026036
Category : Science
Languages : en
Pages : 294
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Book Description
Excerpt from A Manual of the Sub-Kingdom Coelenterata From Professor Allman, also, who has done so much to promote a right knowledge of the Caden terata, the Author has not been denied kind aid. 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: Joseph Reay Greene
Publisher: Forgotten Books
ISBN: 9780656026036
Category : Science
Languages : en
Pages : 294
Get Book Here
Book Description
Excerpt from A Manual of the Sub-Kingdom Coelenterata From Professor Allman, also, who has done so much to promote a right knowledge of the Caden terata, the Author has not been denied kind aid. 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.
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Category : England
Languages : en
Pages : 1408
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Category :
Languages : en
Pages : 912
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Languages : en
Pages : 1800
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Author: Richard E. Blackwelder
Publisher: Createspace Independent Publishing Platform
ISBN: 9781974205462
Category :
Languages : en
Pages : 314
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Book Description
THE CLASSIFICATION OF ANIMALS is Still Very much a field in which discovery and revision are continuing, even after two hundred years of study. The importance of classification in biology increases every year, because the experimental and practical fields find increasing need for accurate identification of animals and for understanding of comparative relationships. At least one outstanding biologist has opposed pubUcation of this new classification on the ground that it would be accepted as final, the classification, and would tend to make students think that all higher classification is finished. The intention of the compiler is just the opposite. Just as this classification is different in detail from all previous ones, so will future editions be still different, as we learn more about the comparative features of animals. It is anticipated that every new edition will spur students of the individual groups to propose improvements. It is therefore planned to issue corrected editions whenever appropriate. The very appearance of these subsequent editions will emphasize the growth of understanding of animal groups. Only one ostensibly complete classification of animals, living and fossil, has been published in recent years. That classification, by A. S. Pearse of Duke University, is a good one, based on the views of many specialists. Certain mechanical faults make it less usable than it should be, and the need for revision gave the original impetus to preparation of the present classification. Because Pearse did not usually indicate the source of his arrangements, he is not here cited as an authority. Nevertheless, the two classifications are basically very similar. No other single classification has been found that agrees so closely with the conclusions of the present study. It should be emphasized that, within certain limits, this classification is not a simple compilation of the views of specific workers. In nearly all details, choices have been made between conflicting schemes of various authors, not on the basis of the reputation of those authors but on my judgment of the soundness of their supporting arguments or on my analysis of the data they present. In none of the larger groups has the work of any single author been accepted without modification. Several considerations have influenced the decisions embodied in this classification. First, a false picture is given by a simplified classification, because the existing diversity is one of the principal features of the animal kingdom. Therefore, no groups should be combined merely for the sake of simplicity. Second, although the previous item would seem to require coverage of the groupings at all possible levels, to show the extreme range of division and subdivision, this is not in fact possible. Not only are there many conflicting groupings at certain levels, such as of phyla or orders, but there is no practical way to show these groupings in a general classification. It is a compromise that is believed to be effective to subdivide the phyla only into classes, subclasses, and orders. Other possible groupings, such as subphyla and superorders are referred to in the notes. Third, two groups which are so distinct at any level that they cannot be described in common terms must be separated at that level. (For example, Pterobranchia and Enteropneusta; see the Notes on the Taxa.) Fourth, groups which cannot be distinguished at any particular level by the type of characters used for their neighbors must be combined at that level. (For example, the sometime classes of Nematoda...
Author: Norman Herr
Publisher: John Wiley & Sons
ISBN: 0787972983
Category : Education
Languages : en
Pages : 614
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Book Description
The Sourcebook for Teaching Science is a unique, comprehensive resource designed to give middle and high school science teachers a wealth of information that will enhance any science curriculum. Filled with innovative tools, dynamic activities, and practical lesson plans that are grounded in theory, research, and national standards, the book offers both new and experienced science teachers powerful strategies and original ideas that will enhance the teaching of physics, chemistry, biology, and the earth and space sciences.
Author: Sue Wells
Publisher:
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Category : Science
Languages : en
Pages : 696
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Category : Education
Languages : en
Pages : 350
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Author: Michael Krasny
Publisher: New World Library
ISBN: 160868069X
Category : Biography & Autobiography
Languages : en
Pages : 266
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Book Description
Krasny brings his wide-ranging knowledge and perceptive intelligence to a thoughtful and thought-provoking exploration of belief--and lack of belief. He helps believers and nonbelievers alike understand their own questions about faith and religion. Personal and universal, timely and timeless, this is a deeply wise yet warmly welcoming conversation, an invitation to ask one's own questions--no matter how inconclusive the answers.
Author: P.S.Verma
Publisher: S. Chand Publishing
ISBN: 812190367X
Category : Science
Languages : en
Pages : 1152
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Book Description
For B.Sc. and B.Sc(hons.) students of all Indian Universities & Also as per UGC Model Curriculum. The multicoloured figures and arrestingly natural photographs effectively complement the standard text matter. The target readers shall highly benefit by correlating the content with the muliticoloured figures and photographs The book has been further upgraded with addition of important questions: long, short, very short and multiple questions in all chapters. A complete comprehensive source for the subject matter of various university examinations.
