Biology in Natural Science

This field encompasses a set of obedience that examines phenomena related to living organisms. The scale of learn can range from sub-component biophysics up to complex ecologies. Biology is concerned with the characteristics, classification and behaviors of organisms, as well as how species were formed and their interactions with each other and the natural environment.

The biological fields of botany, zoology, and medicine date back to near the beginning periods of civilization, while microbiology was introduced in the 17th century with the invention of the microscope. However it was not until the 19th century that biology became a unified science; once scientists discovered commonalities between all living things it was resolute they were best studied as a whole. Some key developments in the science of biology were the discovery of genetics; Darwin's theory of evolution through natural selection; the germ theory of disease and the function of the techniques of chemistry and physics at the level of the cell or organic molecule.

Modern Biology is divided into sub-disciplines by the kind of organism and by the scale being studied. Molecular biology is the study of the original chemistry of life, while cellular biology is the examination of the cell; the basic building block of all life. At a higher level, Physiology looks at the interior structure of organism, while ecology looks at how various organisms interrelate.