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.

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.

A: Science
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Q: Two answers required. They figure prominently in the opening chapter of the book of Malachi, where God reminds the Israelites that he is all-loving and above the law because he chose to save one and destroy the other. One had two concubines, Bilhah and Zilpah, while the others name translated from Hebrew means hairy. With the help of their mother, one tricked the other into giving up his birthright for a bowl of soup to fulfill the prophecy that "the last shall be first". For 10 points, name these twin sons of Rebekah and Isaac, the younger of whom fathered Joseph.

A: Literature
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Q: Among the paintings that remain from this artists student days are Birth and The Dead Man. His portfolio Mein Leben followed Les Ames Mortes, illustrations for an edition of Gogol in his native language. His wife Virginia Haggard posed for A Red and Black World, and a man dressed in brown floats with a woman in white in The Betrothed. The titular green-faced musician stands in front of a house and a church in The Fiddler, but better-known is a self-portrait in which he paints a horse with his seven-fingered hand. Also known for his stained glass windos, this is, FTP, what artist of a work featuring a cows head and the tree of life, I and the Village.

A:
Fine Arts
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