an individual who participates in a long-distance run on a hot day will produce large quantities of sweat. as a result of the excessive sweating, the amount of urine produced by the kidneys will change. how will the kidneys respond to help the individual’s body maintain homeostasis?

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.