The Classification and Evolution of Sponges and Starfish.

The phratryification and Evolution of Sponges and Starfish By Abstract For the social function of this research project the subjects sh solely be cushion starfish a instalment of Phylum Echinodermata and Mycale arse about a member of Phylum Porifera. Both be members of Kingdom animal kingdom and invertebrates. The relative ages of each atomic number 18 Pre-Welsh and early Cambrian to Ordovician respectively. Commonalities in physical characteristics and ancestry atomic number 18 obvious and inferred. These inferences are substantiated by included data and phylogenic tree line design familial relationships as they pertain to these subjects. Also discussed are the detail physical traits depicting the differences in the Species as well as the classification of those Species into Kingdom, Phylum, and so on. The first Species I will polish is referred to commonly as Mycale, formerly know as Esperella. The Latin name for Mycale is Fibrexilis, it is a member of Phylum Porifera and Kingdom Animalia, Class Demospongiae, Order Poecilosclerida, Family Mycalidae, Genus Mycale, Species Fibrexilis. Mycale is a small encrusting sponge, with poor skeletal festering and is yellowish and brown in color. The existence of Mycale was first report in 1937 by H.V. Wilson (Wilson, H.V., 1937). Porifera are among the oldest known fossils date from the late PreCambrian era.

They are known to comprise over 900 antithetic types of fossils, and currently fetch over 5,000 different sponge Species classified in Phylum Porifera. (Introduction to Porifera, http://www.ucmp.Berkely.edu/phylum Porifer a/porifera.html). Beca theatrical role of th! eir simple and peculiar design, they lack true tissues, but are rather an fellowship of cells and are therefore referred to as Parazoans. They do produce a skeletal structure through the use of spicules and spongem. Mostly all of Phylum Porifera are marine animals. They fork up a strange feeding system that lacks a mouth. They are filter feeders. The cells of sponges have small holes in the skin that are... If you neediness to get a blanket(a) essay, order it on our website: OrderCustomPaper.com

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