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.

[EX Q]: Earthworms uniquely use the molecule lombricine to react with this molecule. This molecule activates P2X3 and P2X2/3, two receptors that control pain responses, and in conjunction with luciferin this molecule is responsible for the light of fireflies. In the muscular tissue of chordates, this compound donates a group to creatine. In proteins, this molecule, first synthesized by Alexander Todd, is almost always bound by a magnesium cofactor, and large quantities of this molecule are produced via oxidative phosphorylation in the electron transport chain. For 10 points, name this molecule discovered by Karl Lohmann,, the energy currency of the cell.
[EX A]: Science

[EX Q]: He attempted to impart a Middle Eastern flavor to works such as the Nuit persane and his fifth piano concerto, known as the "Egyptian. " This composer of the Spanish-flavored Havanaise also wrote a piece which contrasts a reflective opening with a faster section in which the soloist plays in 2/4 against the orchestra's 6/8. Another work for violin and orchestra by this composer required an E to E flat scordatura tuning, was based on a Henry Cazalis poem, features an oboe near the end symbolizing a rooster call and uses the xylophone to depict rattling bones. For 10 points, name this composer of the Introduction and Rondo Cappricioso, Danse Macabre, and Carnival of the Animals.
[EX A]: Fine Arts

[EX Q]: Farmer King" was an epithet given to the infrastructure-obssessed King Denis of this country, and one of its most important leaders is known for having a Jewish advisor, Jehuda Cresques. The papal bull Aeterni regis divided colonial sovereignties between this polity and Castile by ratifying the Treaty of Alcacovas. The Tavora Conspiracy to kill its king led to the expulsion of Jesuits from this country, which provided the wife to (*) Charles II of England and later saw its dictatorship fall in the Carnation Revolution. For 10 points, identify this nation whose Aviz Dynasty included Henry the Navigator, the colonizers of Mozambique and Brazil.
[EX A]:
History

