Spontaneous generation

The process of hypothesis that organisms develop from non-living things; and ancient theories use this process to explain the origin of life. According to this theory, for example, because the mouse rags in a few weeks, the slices of cheese and bread wrapped in dark corners and left in dark corners are considered to be mice. As it accounts for the appearance of rotten flesh aphids, many people believe that it happened.

By the 18th century, it became clear that high organisms can not be produced from non-biological substances. However, the origin of microorganisms such as bacteria was completely decided until the time Louis Pasteur proved in the 19th century. Also see biosynthesis

Self-occurrence refers to an outdated ideology of the general formation of living organisms, without diminution of similar organisms. According to the theory of self-generation, organisms can be produced from non-living things, and these processes are normal and regular. For example, certain forms such as fleas may come from inanimate objects like dust, or it is speculated that cockroaches may be caused by dead flesh. Another idea is an ambiguous generation. Where a species such as aphids comes from unrelated organisms and is now considered to be their host. In contrast, the idea of ​​monosyllabic generation refers to the effective and exclusive breeding of genetically related parents (usually the same species).

Empedocles accepted the spontaneous generation of life on occasional preconceptions which are considered concepts of natural selection, but I thought that different forms of different partial combinations occurred spontaneously like trial and error It was. I can not reproduce the seed that we are seeing now, the form which failed. Aristotle suggested that in sexual reproduction children inherit the father's form (eidos) and maternal materials, as well as fathers or the heat (pneuma) from the environment. In the process of self-generation, the environment can effectively replace parents' contributions to shapes, materials, and fever.