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Author: Kristian Fauchald
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 206
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Book Description
Author: Kristian Fauchald
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 206
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Book Description
Author: Donald J. Reish
Publisher:
ISBN:
Category : Heavy metals
Languages : en
Pages : 152
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Book Description
Author: Gregory Rouse
Publisher: Oxford University Press
ISBN: 9780198506089
Category : Science
Languages : en
Pages : 392
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Book Description
Polychaetes are very common marine worms belonging to the Annelid family that are of interest to marine biologists and invertebrate zoologists. The book presents an understanding of the biology of this group with many illustrations.
Author: Marian H. Pettibone
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 368
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Book Description
Author: Marian H. Pettibone
Publisher:
ISBN:
Category : Polychaeta
Languages : en
Pages : 498
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Book Description
The polychaetes of the Atlantic coast of New England are still imperfectly known. The present study attempts to give as complete a representation of the New England polychaete fauna as is now possible, to systematize knowledge of the polychaete species known from this New England region of the American coast, and to furnish keys designed to facilitate their identification.
Author: Vladmimir Evgenʹevich Strelʹt︠s︡ov
Publisher:
ISBN:
Category : Annelida
Languages : en
Pages : 250
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Author: Janet L. Leonard
Publisher: Springer
ISBN: 3319941399
Category : Science
Languages : en
Pages : 370
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Book Description
This book focuses on explaining the distribution of sexual systems (simultaneous hermaphroditism, sequential hermaphroditism, environmental sex determination,dioecy, androdioecy, etc.) among taxa, which remains a major challenge in evolutionary biology. Although significant advances have been made for angiosperms, there is not yet a theory that predicts the sexual system for the majority of animal taxa, and other taxa of plants also remain poorly understood. The problem, particularly for animals, is that sexual systems can be very conservative, with whole phyla and classes being characterized by a single sexual system; for example essentially the whole phylum Platyhelminthes is simultaneously hermaphroditic, whereas the Insecta (Hexapoda) and the Tetrapoda among the vertebrates, are exclusively dioecious. Sex allocation theory on the other hand, suggests that sexual systems should be highly responsive to evolution, changing with population density, life span, patterns of resource availability, etc. The book provides an overview of the topic and then presents a series of chapters, each dealing with a taxon with substantial lability in sexual system in order to identify the factors associated with changes in sexual system in each case. By doing so, the authors reveal factors that have not been considered in formal theory but seem to have a major impact on transitions between sexual systems. This book appeals to a wide readership in fields from zoology and evolutionary biology to botany.
Author: Vladimir Evgenʹevich Strelʹt͡sov
Publisher:
ISBN:
Category : Annelida
Languages : en
Pages : 250
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Book Description
Author: Joan M. Uebelacker
Publisher:
ISBN:
Category : Annelida
Languages : en
Pages : 214
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Author:
Publisher:
ISBN:
Category : Biotic communities
Languages : en
Pages : 440
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Book Description
