Biology is the science focused on the investigation of the phenomenon of life—and of living organisms (and of such living systems as ecological systems). The term derives from the Greek: bios (meaning "life") and logia (meaning "study of").
Biologists study and communicate science-based information on the structure, functioning, growth, origin, evolution, distribution, and classification of these living organisms and systems.. Biology is composed of a wide spectrum of sub-disciplibes.
Pictured here, Dr. Rita R. Colwell—a microbiologist—became the 11th Director of the National Science Foundation in 1998.