The most abundant cells in vertebrate blood are red blood cells. These contain hemoglobin, an iron-containing protein, which facilitates oxygen transport by reversibly binding to this respiratory gas and greatly increasing its solubility in blood.
Chesapeake is an independent city located in the U.S. commonwealth of Virginia. As of the 2010 census, the population was 222,209; in 2013, the population was estimated to be 232,977, making it the third-most populous city in Virginia. Chesapeake is included in the Virginia BeachâNorfolkâNewport News, VAâNC MSA. One of the cities in the South Hampton Roads, Chesapeake was organized in 1963 by voter referendums approving the political consolidation of the city of South Norfolk with the remnants of the former Norfolk County, which dated to 1691.
Alleghany County is a United States county located on the far western edge of Commonwealth of Virginia. It is bordered by the Allegheny Mountains, from which the county derives its name, and it is the northernmost part of the Roanoke Region of Virginia. The county seat is Covington. The county was created in 1822 from parts of Botetourt County, Bath County, and Monroe County (now in West Virginia). At the time, the majority of the population lived around Covington, and the primary cash crop then was hemp, which was used for rope production.