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]: When it interacts with ryanodine receptors, this element upregulates its own release, and this compound forms the cell plates of coccolithophores. Stimulation of Gq ("g-sub-q") opens a channel that allows for this ion's movement, and proteins that bind this ion have an EF hand motif. Cellular concentrations of this ion are regulated by IP3. Parafollicular cells of the (*) thyroid produce a compound that reduces the concentration of this ion in blood, and its intestinal absorption requires vitamin D. This ion interacts with Troponin to stimulate muscle contraction, and the lumens of sarcoplasmic reticula have high concentrations of this ion. For 10 points, name this divalent cation that is stored in bones.
[A]: Science


[Q]: man included a long wing ending in a series of dovecotes for a Bagnolo building; that structure also includes a barrel-vaulted main room. One building designed by this man includes frescoes by Battista Franco and was nicknamed "La Malcontenta," his Villa Foscari. He also designed an edifice whose bell tower collapsed in 1774, the Church of San Giorgio Maggiore. One of this man's most famous structures is a dome whose design was altered by his fellow architect Scamozzi after his death. That villa contains a large central dome. For 10 points, name this architect of the Villa Rotunda who wrote the Four Books of Architecture.
[A]: Fine Arts


[Q]: This author wrote about the tough old Teuton / Who brewed the stoutest ale in Cobbler Keezars Vision, while he satirized a Puritan minister, describing him as his eyes agog and his ears set wide in The Double-Headed Snake of Newbury. The Judge weds a wife of richest dower instead of Maud Muller in one poem by this author, who also wrote about a woman who raised an American flag despite the arrival of Stonewall Jackson in Barbara Frietchie. In addition to writing the collections Legends of New England and Moll Pitcher, this author is probably best remembered for a poem, subtitled A Winter Idyll, which describes a New England family during a week-long blizzard. FTP, name this American Quaker poet of Snowbound.
[A]:
Literature