The internal structures of these objects may be described by a “monolith” or a “cluster” model. One region of these objects contains flux tubes arranged in an “interlocking-comb” structure. (-5[1])The absorption lines of these objects are (15[1])redshifted at their edges and blueshifted near their centers due to a radial gas current called (15[1])the Evershed flow. The distributions (15[2])of these objects are depicted on (15[1])a plot of (*) latitude vs time (15[1])called the butterfly diagram. (10[1])The outer filamentous regions of (15[1])these objects are surrounded by a granulation pattern of convection cells. (10[1])These objects are created in bipolar magnetic regions, which (-5[1])are maximized when (10[3])the overall field flips (10[3])polarity approximately (10[1]-5[1])every 11 years. (10[1]-5[1])The umbra is the center of, for 10 points, what dark regions that form transiently on the sun's surface? (10[1])■END■ (10[1])