Biology is the study of life in its entirety. The growth of biology as a natural science is interesting from many points of view. One feature of this growth is changing emphasis. Initially it was description of life forms, identification, nomenclature, classification of all recorded life forms. In recent years, Physics and Chemistry have been applied to biology and the new science of Biochemistry and Biotechnology have become the dominant faces of Biology. Medicinal practice, green revolution and the advancement in biotechnology has made the presence of biology felt by the common man.
