The scientific study of life is known as biology. Although it is a natural science with a large reach, it is tied together as a single, cohesive field by a number of commonalities. For instance, every organism consists of cells that process genetic information that can be passed on to future generations. The explanation for the unity and diversity of life is provided through evolution, which is a major theme. Processing energy is essential to life since it enables movement, growth, and reproduction in living things. And lastly, all living things have the capacity to control their own interior surroundings.