The Metamerism Of The Hirudinea Contributions From The Zo Logical Laboratory Of The Museum Of Comparative Zo Logy At Harvard College No 108
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The Metamerism Of The Hirudinea Contributions From The Zo Logical Laboratory Of The Museum Of Comparative Zo Logy At Harvard College No 108
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Author : William Ernest Castle
language : en
Publisher:
Release Date : 1900
The Metamerism Of The Hirudinea Contributions From The Zo Logical Laboratory Of The Museum Of Comparative Zo Logy At Harvard College No 108 written by William Ernest Castle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1900 with Leeches categories.
The Metamerism Of The Hirudinea
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Author : William Ernest Castle
language : en
Publisher:
Release Date : 1900
The Metamerism Of The Hirudinea written by William Ernest Castle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1900 with Leeches categories.
Biological Systematics
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Author : Alessandro Minelli
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Biological Systematics written by Alessandro Minelli and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
To some potential readers of this book the description of Biological System atics as an art may seem outdated and frankly wrong. For most people art is subjective and unconstrained by universal laws. While one picture, play or poem may be internally consistent comparison between different art products is meaningless except by way of the individual artists. On the other hand modern Biological Systematics - particularly phenetics and cladistics - is offered as objective and ultimately governed by universal laws. This implies that classifications of different groups of organisms, being the products of systematics, should be comparable irrespective of authorship. Throughout this book Minelli justifies his title by developing the theme that biological classifications are, in fact, very unequal in their expressions of the pattern and processes of the natural world. Specialists are imbibed with their own groups and tend to establish a consensus of what constitutes a species or a genus, or whether it should be desirable to recognize sub species, cultivars etc. Ornithologists freely recognize subspecies and rarely do bird genera contain more than 10 species. On the other hand some coleopterists and botanists work with genera with over 1500 species. This asymmetry may reflect a biological reality; it may express a working practicality, or simply an historical artefact (older erected genera often contain more species). Rarely are these phenomena questioned.
The Woods Hole Marine Biological Laboratory
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Author : Frank Rattray Lillie
language : en
Publisher:
Release Date : 1944
The Woods Hole Marine Biological Laboratory written by Frank Rattray Lillie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1944 with Marine biology categories.
The Stomach Worm
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Author : John Spencer
language : en
Publisher:
Release Date : 1901
The Stomach Worm written by John Spencer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1901 with Helminths categories.
Trichier
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Author : Alessandra Ceretto
language : en
Publisher: Lulu.com
Release Date :
Trichier written by Alessandra Ceretto and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Morphology Molecules Evolution And Phylogeny In Polychaeta And Related Taxa
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Author : Thomas Bartolomaeus
language : en
Publisher: Springer Science & Business Media
Release Date : 2005-07-13
Morphology Molecules Evolution And Phylogeny In Polychaeta And Related Taxa written by Thomas Bartolomaeus and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-07-13 with Nature categories.
Annelida, mainly consisting of marine Polychaeta and in faunal and partly parasitic Clitellata, is one the most significant metazoan taxa. Its more than 20.000 described species invade nearly all habitats and play a central role in marine benthic systems as well as in terrestrial soil communities. Annelids include all soft-bodied segmented worm-like organisms and have been recognized as a separate "phylum" for almost 200 years. Recently, evidence has been accumulated which shows that some of the groups formerly regarded as independent "phyla" such as Pogonophora (now recognized as Siboglinidae), Echiura, Myzostomida and perhaps Sipuncula, are most probably nothing else than greatly modified Annelida. The extreme morphological diversity found especially in Polychaeta displays the plasticity of a simple segmented organisation that basically is nothing else but a serial repetition of identical units. Thus, annelids are highly important to our understanding of fundamental questions about morphological and adaptive diversity, as well as clarifying evolutionary changes and phylogenetic relationships. The book aims to summarize our knowledge on Polychaetes polychaetes and their allies and gives an overview of recent advances gained by studies that employed conventional and modern methods plus, increasingly and importantly, the use of molecular markers and computer-assisted kinship analyses. It also reflects the state of art in polychaete sciences and presents new questions and controversies. As such it will significantly influence the direction of research on Polychaeta and their related taxa.
An Introduction To Nematology
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Author : May Belle Hutson Chitwood
language : en
Publisher: Andesite Press
Release Date : 2015-08-12
An Introduction To Nematology written by May Belle Hutson Chitwood and has been published by Andesite Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-12 with categories.
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.
Geology Of The Cape Cod District
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Author : Nathaniel Southgate Shaler
language : en
Publisher:
Release Date : 1898
Geology Of The Cape Cod District written by Nathaniel Southgate Shaler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1898 with Cape Cod (Mass.) categories.
Life Letters And Works Of Louis Agassiz
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Author : Jules Marcou
language : fr
Publisher:
Release Date : 1896
Life Letters And Works Of Louis Agassiz written by Jules Marcou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1896 with Naturalists categories.