Download or read book The Biology of the Turbellaria written by E.R. Schockaert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Third International Symposium Held in Diepenbeek, Belgium, August 11-15, 1980

Download or read book The Popular Science Review written by and published by . This book was released on 1867 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemistry of Learning written by W. C. Corning and published by Springer. This book was released on 2013-12-01 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbellarian Biology written by Seth Tyler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbellarian platyhelminths (or, as they are known now among cladistic systematists, free-living Platyhelminthes) comprise a widely distributed assemblage of lower worms found in marine, freshwater, and even occasionally in terrestrial habitats. The phylum Platyhelminthes may be more widely known for its parasitic members since the major parasitic groups of the tapeworms, flukes, and their relatives are more speciose and have greater impact on everyday human life; but the turbellarians are more diverse and, as inhabitants of virtually any aquatic habitat, are more widespread as well. Many of the lower turbellarians are rather simple in morphology and have served as models for ancestors of the Bilateria, i.e., the bulk of the animal phyla. Others are quite complex organisms, especially in the morphology of their reproductive systems which are highly specialized. The majority are free-living in aquatic habitats but a number of interesting parasitic and commensal species are found scattered among the higher turbellarian taxa. But turbellarians are more than just taxonomic curiosities. They have served as illustrative models in research on a variety of basic life processes. For example, their high capacity for regeneration has made them the subject of a large literature in developmental biology, the occurrence of mixoploidy and other karyological oddities among turbellarians has been important in understanding evolution of the genome, and the fine structure and biochemistry of the nervous system in turbellarians is revealing important principles of the organization of so-called primitive neural systems.

Download or read book Advances in Ecological Research written by and published by Academic Press. This book was released on 1966-01-01 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Ecological Research

Download or read book Bulletin written by Kyoto (Japan) Gakugei University and published by . This book was released on 1957 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in the Biology of Turbellarians and Related Platyhelminthes written by Seth Tyler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Fourth International Symposium on the Turbellaria held at Fredericton, New Brunswick, Canada, August 5-10, 1984

Download or read book The Journal of Ecology written by and published by . This book was released on 1926 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 16-21 include supplement: British empire vegetation abstracts.

Download or read book Planarian Regeneration written by H. V. Brøndsted and published by Elsevier. This book was released on 2013-10-22 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planarian Regeneration deals with regeneration problems including embryogenesis and morphogenesis. The book compares the principles involved in the regeneration processes with those in ontogenesis from the egg. The author also reviews the works of Thomas H. Morgan and Charles M. Child which became the basis for systematic scientific investigation of regeneration. The head regenerates vigorously, with a faster rate behind the eyes, then at various levels along the longitudinal axis of the planarian body. A time-graded regeneration includes inhibitory forces and some genetic codes that determine such rate. The time-graded field has been proven by transplantation experiments; the author addresses the morphological structure to which biochemical factors or processes determine the different rate of regeneration. He notes that the nervous system conforms to these processes as shown by studies of Lender and Klein (1961). The author suggests that the study of regeneration in planarians should involve time considerations quantitatively to explain some substance, if any, from the nervous system that activates the cytoplasm of neoblasts, and then the genome. This book will prove valuable for zoologists and researchers in genetics, biochemistry or molecular biology.

Download or read book Planaria A Model for Drug Action and Abuse written by Robert B. Raffa and published by CRC Press. This book was released on 2008-12-03 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of drug action has benefitted greatly from the development and use of in vivo model systems. In model systems, manipulations and observations can be more rigorously controlled and screens of novel therapeutic agents can be more safely conducted.No single model system provides all of the possible advantages. At one end, mammalian models al

Download or read book Proceedings of the Academy of Natural Sciences of Philadelphia written by Academy of Natural Sciences of Philadelphia and published by . This book was released on 1858 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publications of the Academy of Natural Sciences of Philadelphia": v. 53, 1901, p. 788-794.

Download or read book Animal Population Ecology written by J Dempster and published by Elsevier. This book was released on 2012-12-02 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal Population Ecology focuses on the interaction between the various factors that affect an animal population. Population ecology is the study of the factors that determine the abundance of species and is concerned with the identification and mode of action of those environmental factors that cause fluctuations in population size and of those which determine the extent of these fluctuations. Organized into 11 chapters, the book initially examines some of the basic ideas about animal populations and defines many of the terms used by population ecologists. Then, it describes the action of the most important factors affecting population size. The interaction between these factors is demonstrated in chapters 8 and 9, wherein the results from studies of a few selected species are presented in detail. Finally, chapters 10 and 11 cover the development of generalized theories of population dynamics and their application to practical problems. With a strong focus on intensive study of animal populations in the field, rather than elaborate theories, the book will be helpful to population ecologists, animal researchers, teachers, and students.

Download or read book A Catalogue of the British Non parasitical Worms in the Collection of the British Museum written by British Museum (Natural History). Department of Zoology and published by . This book was released on 1865 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Freshwater Planarians Turbellaria of North America written by Roman Kenk and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book River Ecology written by Brian A. Whitton and published by Univ of California Press. This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1978 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annotationes Zoologicae Japonenses written by and published by . This book was released on 1974 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: