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Reproductive Strategies and Developmental Patterns in Annelids
The fascination of the Annelida to scientists lies in the beauty of their structures and the functionality of their body plan, the tremendous adaptive radiation which has made it possible for these animals to colonize almost all marine, limnic and terrestrial biotopes. In doing so they have evolved a great variety of life forms, and their reproduction and development are correspondingly diverse, with many modes and patterns unique in the animal kingdom. In this special volume recent progress in this broad research area is presented by 26 specialists, in general through surveys or treatments of selected examples. Some of them review important annelid taxa such as the Nereididae, Syllidae, Spionidae, Cirratulidae, Clitellata, and Pogonophora; others analyse reproductive and developmental structures and phenomena in annelids, e.g. segmental organs, sex pheromones, oogenesis, mating systems, sperm types, life cycles, larval settlement, cleavage and symmetry of embryos, or discuss controversial approaches to annelid systematics. The book will be of interest to all zoologists who work with annelids as well as to embryologists and other researchers in reproductive biology.
What Is Life? Scientific Approaches And Philosophical Positions
The book of Erwin Schrödinger about life evokes a variety of basic questions concerning the understanding of life in terms of modern physics rather than biochemistry. Problems of organization and regulation of biological systems cannot be understood by revealing only the chemical processes of the living state. A group of reputable physicists — among them the followers of Heisenberg and Fröhlich — and biologists came to this same conclusion through several workshops on this topic. This book contains their contributions, written from different viewpoints of theoretical physics and modern biology. These articles are valuable not only for understanding life, but also for creating new and non-invasive diagnostic and therapeutic tools in medicine; they also contribute importantly to a deeper understanding of evolutionary processes, including the development of consciousness.
Experimental Embryology in Aquatic Plants and Animals
The NATO Advanced Study Institute on "Experimental Embryology in Aquatic Plant and Animal Organisms" was attended by more than 70 participants, including 15 invited main lecturers from 18 different countries. In accordance with the main purpose of the meeting, senior scientists, postdoctoral investigators and graduate students working in areas of descriptive and experimental embryology, classical, molecular and developmental biology, physiology and biochemistry etc. , were brought together for two weeks as a community with a strong common interest in "development"; that is, the multiple phenomena and mechanisms, in molecular, cellular, genetic and organismic terms, observed in the developmen...
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