Three Classes of Sponges Class Calcarea spicules of calcium carbonate Class Hexactinellida spicules of silica fused in a continuous and often very beautiful latticework Class Demospongiae the largest class, which has unfused silica spicules, OR a tough, keratin-like protein called spongin, OR a com...
Porifera, or sponges, are primitive Metazoa. They are multicellular but have no developed tissue organization, utilizing independent cellular activity to carry out all body functions. They are a successful group in ancient and recent aquatic environments with origins in pre-Cambrian times. Keywords: ...
Sponges (Porifera - Müller - 2003Müller W E G, Müller I M. Analysis of the sponge (Porifera) gene repertoire: Implications for the evolution of the metazoan body plan. In: Müller W E G, ed. Marine Molecular Biotechnology, Sponges (Porifera). New York: Springer-Verlag Berlin Heidelberg...
Sponges (Porifera) and Sponge MicrobesSynonymsSynonymsSponge-associated bacteria; Sponge-associated microbes; Sponge-associated microbiota; Sponge bacteria; Sponge–microbe systems; Sponge symbiontsDefinitionDefinitionSponges are sessile mdoi:10.1007/978-1-4020-9212-1_194Friederike Hoffmann...
Above: a Pov-Ray model of a sponge. Sponges belong to the phylum Porifera, which literally many 'many pores' since the surface of a sponge is covered in minuteporesthat suck in water and nutrients, which the sponge filters before expelling the water from a large opening orosculum. Sponges...
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It's probably a little easier for you to think of them as animals as opposed to sponges, which are just so alien it's hard to even think of them as living organisms. Cnidarians are also very evolutionary mystic organisms. They are going to have a radial body plan, which means that, ...
Figure 1. Sponges are members of the Phylum Porifera, which contains the simplest invertebrates. (credit: Andrew Turner) The invertebrates, orinvertebrata, are animals that do not contain bony structures, such as the cranium and vertebrae. The simplest of all the invertebrates are the Parazoans,...
Deep-sea reefs and coral banks are increasingly known as highly biodiverse ecosystems where sponges constitute a significant proportion of builders and inhabitants. Albeit smaller in dimensions, Campos Basin coral mounds also harbor a rich associated fau