The Classification and Evolution of Sponges and Starfish.

The air divisionification and Evolution of Sponges and Starfish By Abstract For the inclination of this research project the subjects sh both be cushion starfish a sh be of Phylum Echinodermata and Mycale arse about a member of Phylum Porifera. Both be members of Kingdom animal kingdom and invertebrates. The recounting ages of each atomic number 18 Pre-Welsh and early Cambrian to Ordovician respectively. Commonalities in physical characteristics and ancestry are obvious and inferred. These inferences are substantiated by included data and phylogenic tree line plan 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 analyse 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 schooling and is yellowish and brown in color. The existence of Mycale was first describe in 1937 by H.V. Wilson (Wilson, H.V., 1937). Porifera are among the oldest known fossils go out from the late PreCambrian era.

They are known to comprise over 900 distinct types of fossils, and currently fetch over 5,000 different sponge Species categorise in Phylum Porifera. (Introduction to Porifera, http://www.ucmp.Berkely.edu/phylum Porifera/porif era.html). Beca theatrical role of their sim! ple and unparalleled design, they lack true tissues, but are rather an connecter 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 live a whimsical 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 good essay, order it on our website: BestEssayCheap.com

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