That's a great question. Life Science(s) is the term used to describe the scientific study of living organisms and their environment. This includes everything from microscopic viruses (and smaller) to humans, to whole ecosystems. A major component of the life sciences is in the study of biology, which translates (from Greek) to "study of" [logia] "life" [bios]. If you have more specific questions about the life sciences, please send them along to ScienceLine!