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: Founder-flush models of this phenomenon propose that it may result from repeated bottlenecks. Changes of ploidy in plants can cause this process due to the frequent sterility of the resulting offspring. The(*) sympatric version of this phenomena occurs between populations in the same region, and punctuated equilibria are a sign of the allopatric variety of this process in the fossil record. For 10 points, name this biological process, in which populations become reproductively isolated and diverge, leading to the formation of new species.

A: Social Science
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Q: The relationship between temperature and this quantity is given by the Steinhart-Hart equation. Tunnel diodes have a negative value for this quantity, whose changes are measured by the most common type of strain gauge. The proximity and skin effects cause increases in this quantity with increasing frequency. The time constant tau is equal to indudctance divided by this quantity in an RL circuit. An unknown value of this quantity can be determined with a Wheatstone bridge. This quantity is the real part of impedance in AC circuits, and it is equal to voltage divided by current. For 10 points, name this opposition to the flow of current that is measured in ohms.

A: Science
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Q: A passage in which two dark figures are reclining separates a crowd of onlookers who are obscured by shadow in the background of this painting, while a skylight not visible to the viewer illuminates the forehead of one of the central figures. On the left, a man behind a desk is writing on a piece of paper above a woman who raises her hands in a clawlike gesture to shield her view from the central action. Blood covers the fingers of the central figure, who stares out at the viewer, while four figures with scalpels at right concentrate on a naked form. FTP, name this painting by Thomas Eakins.

A:
Fine Arts
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