In biological classification, which rank does the name "Homo sapiens" represent?

Which naval officer was promoted to rear admiral 22 years after the famous mutiny against him on April 28, 1789? Which unit of weight equals about 2,204.62 pounds? Which man was both the 22nd and 24th president of the United States? Which author wrote 23 small books for children, including "The Tale of Tom Kitten"? 23 years after the United States did so, Brazil abolished what in 1888? About 23,000 casualties were suffered at the Civil War battle of Pittsburg Landing, also known by what name? The presidential library at 2313 Red River Street in Austin, Texas, is dedicated to which president? Casino magnate Sheldon Adelson opened his $1.9 billion Palazzo resort in which city in 2007?