In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

One member of this phylum, Strongylocentrotus purpuratus, is often used to study developmental processes, and another, Pisaster ochraceus, is an example of a keystone species. Most members of this phylum have pedicellariae that possess three jaws, and some have a chewing apparatus known as Aristotle's lantern. Members of class Asteroidea of this phylum have an ambulacral groove, and the madreporite is the entrance to their water vascular system that includes tube feet. FTP name this phylum whose "spiny skinned" members have radial symmetry and include sand dollars, sea urchins, and sea stars.
Social Science

His first symphony ends with a passacaglia and despite its odd title is actually composed of four movements. One of this man's works, which was originally called The Serpent Heart, features a Parodos that introduces the characters and includes a notable "Dance of Vengeance. " Another of this man's pieces opens with a flute solo before other themes, including one for brasses, begin; it is the second of two Essays for Orchestra. He was inspired by Prometheus Unbound in creating his Music for a Scene from Shelley and looked to Sheridan to compose the Overture to the School for Scandal. Another work by this composer of the Capricorn Concerto originated as the slow movement of a Quartet in B minor and was first performed by Toscanini in 1938. For 10 points, identify this composer of Vanessa and the Adagio for Strings.
Fine Arts

The large southern provinces of this country include Adrar, Tamanghasset, and Illizi, while the majority of its divisions are clustered around the capital and include Media, Blida, and Boumerdes. Despite being watered by the Wadi Saour and Wadi Djaret, it is covered by several deserts, including the Great Western Erg and Great Eastern Erg. Cities of over half a million people in this country include Constantine and (*) Oran . The eastern Atlas Mountains stretch across, for 10 points, what country, which borders both Tunisia and Morocco, has a northern Mediterranean coast, and is a large former French colony in North Africa

Social Science