TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: Science

PROBLEM: In a 1984 study, J.G. Miller showed that this was less common among Indian Hindus than Americans. The common term for it was first coined in the work "The Intuitive Psychologist and His Shortcomings", while studies by Daniel Gilbert have shown it to be more common when cognitive load is high. Lee Ross coined the term for it in 1977, while Edward Jones and Victor Harris demonstrated it in a famous 1967 experiment in which subjects read essays and were then asked to rate the authors attitudes toward Fidel Castro. Also called the "correspondence bias," FTP, name this psychological tendency to over-emphasize personality attributes and under-emphasize situational attributes in explaining the behavior of others.

SOLUTION: Social Science

PROBLEM: It was first observed in 1933 by its eponymous discoverers in tin and lead specimens. Rather than a sharp boundary at the edge of the sample, there is a gradual decay of the magnetic field across the penetration depth of the material. This is caused by persistent (*) currents which form on the surface of the material as it is cooled below the critical temperature, which completely cancel out the flux inside it, resulting in perfect diamagnetism. It allows the diamagnetic levitation of small items, including live frogs. FTP, name this uniquely defining property of superconductors, a phenomenon characterized by the complete expulsion of a magnetic field.

SOLUTION:
Science