Cell (biology) The cell is the structural and functional unit of all living organisms, and is sometimes called the building block of life.. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, (humans have an estimated 100 trillion cells; a typical cell size is 10 Âµm, a typical cell mass 1 nanogram). The largest known cell is an ostrich egg.
Homefacts City Report. Ollie is located in Keokuk County, IA. The population is 274, making Ollie the 9th largest city in Keokuk County. There are 0 public schools in Ollie with an average Homefacts rating of NA. The total crime rate for Ollie is very low, and there are 4 registered sex offenders residing in the city.
Leon, Iowa. Leon is a city in Decatur County, Iowa, United States. The population was 1,977 at the 2010 census. It is the county seat of Decatur County. The city is located near the Little River Lake Recreation Area. Leon is home to a major rodeo that has been Rodeo of the Year in Iowa for many years.