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: proteins bind one end of these structures and help inhibit a process called "catastrophe. " These structures can have persistence lengths of 3-4 mm, which is several orders of magnitude higher than the average cellular diameter. These structures can be severed by katanin. Drugs such as paclitaxel stabilize these structures and prevent their depolymerization, where colchicine prevents its dimeric subunits from coming together. Shortening of these structure at the kinetochore ends of the spindle apparatus helps chromosomes walk towards poles during mitosis and meiosis. For 10 points, identify these structures which are components of the cytoskeleton and which are made of tubulin proteins.

Answer: Science

Question: The beneficial type of this concept would be produced by such factors as the development of an AIDS vaccine, a better educational system, or a more efficient highway system. Costs of this type are not factored into the GDP; therefore, the GDP overstates economic welfare. FTP, name this economic concept in which a third party is affected by production or consumption of a commodity.

Answer: Social Science

Question: One set of edicts enacted by this dynasty was designed to protect stray dogs and was titled the
""Compassion for Living Things"" laws. The Dutch-born American interpreter Henry Heusken was
assassinated while working under Townshend Harris in the American Consulate to this dynasty. Supporters
of this dynasty lost at the Battle of Hakodate after starting the Ezo Republic during the Boshin War. This
empire followed the Warring States period and was founded following its namesake's victory at the Battle
of Sekigahara. For 10 points, name this powerful shogunate that ruled Japan in the years preceding the
Meiji Restoration, also named for the city in which it was based.

Answer:
History