Define organic evolution. Why is biological evolution called organic evolution?

Organic evolution, also known as biological evolution, refers to the process by which living organisms change over successive generations through heritable variation, natural selection, and other mechanisms. It is the fundamental principle that explains the diversity of life on Earth.

Biological evolution is called "organic evolution" primarily because it deals with living organisms, which are composed of organic molecules. The term "organic" in this context refers to living organisms and the processes related to their growth, development, and adaptation. Thus, "organic evolution" emphasizes the fact that evolution is a phenomenon that occurs within the realm of organic life, as opposed to inorganic or non-living entities.