The surface area to volume ratio decreases as the cell grows. If the cell gets too large, it won't have sufficient surface area to meets its nutritional needs. So, cells have to divide every so often to keep their overall volume small relative to the surface area.
Haysi is a town in Dickenson County, Virginia, United States. The population was 186 at the 2000 census. The pronunciation of the final syllable is that of sigh.
Spencer County was formed in January 1824, by the 32nd Kentucky General Assembly. The land that now makes up Spencer County was taken from Bullitt County, Shelby County, and Nelson County. Spencer County became Kentucky's 77th county. The county was named for Kentucky's Captain Spier Spencer, who fought and died in the Battle of Tippecanoe. Later that year, in December 1824, Taylorsville was made the county seat. In 1829, the city was incorporated.