By Alexander V. Ereskovsky
One of the foremost questions within the evolution of animals is the transition from unicellular to multicellular association, which led to the emergence of Metazoa via a hypothetical Urmetazoa. The Comparative Embryology of Sponges includes considerable unique and literary info on comparative embryology and morphology of the Porifera (Sponges), a bunch of 'lower Metazoa'. at the foundation of this fabric, unique typization of the improvement of Sponges is given and the issues referring to foundation and evolution of Porifera and their ontogenesis are mentioned. A morphogenetic interpretation of the physique plan improvement in the course of embryogenesis, metamorphosis and asexual copy in Sponges is proposed. targeted cognizance is given to the research of attribute gains of the ontogenesis in Porifera.
The booklet pursues 3 basic objectives: 1) generalization of all latest info on person improvement of sponges, its type and an announcement in line with taxonomical constitution of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in a number of clades of Porifera, and likewise their correlations with the association, either grownup sponges, and their larvae; three) revealing homology of morphogeneses in either Porifera and Eumetazoa, attesting to the final evolutionary roots of multicellular animals, and weird positive factors of sponges' morphogeneses and ontogenesis.
This e-book may be of curiosity to embryologists, zoologists, morphologists and researchers in evolutionary biology.