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.
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Question: 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.

Answer: Social Science


Question: Cardinal Thomas Gibbons' defense of this organization would lead to Pope Leo XIII issuing an encylical, Rerum Novarum, supporting organizations of their kind. In contrast with its inclusive reputation, a chapter of this group was involved in the Seattle riots of 1886. Internal feuding following the failed Missouri Pacific railroad strike of 1886, and the emergence of a rival organization of skilled craftsmen, meant that by 1900, this organization was almost nonexistent. Name this labor organization that helped lobby for the Chinese Exclusion Act and, for 10 points, was founded by nine tailors in Philadelphia in 1869 and reached its peak under Terence V. Powderly.

Answer: History


Question: According to one tradition, it is the last of 14 stages known as gunasthanas, and those who have it get to live in Isatpragbhara. In that tradition, it can be acquired through "right conduct," "right belief," and "right knowledge," which are known as the Ratnatraya collectively. According to another tradition, it consists of ananda which can be achieved through japa, while another religion holds that there are four margas which lead to it, including the path of knowledge, or Jnana, and love, or Bhakti. In Jainism, it results when the atman has shed his karma. FTP, give this term which in Indian religions refers to the soul's release from the cycle of becoming known as samsara.

Answer:
Social Science