Alexander OparinAlexander Oparin., like J. B. S. Haldane Ling things evolved from lifeless matter to begin Darwinian evolution.
As early as 1922, he asserted that: There is no fundamental difference between a living organism and lifeless matter. The complex combination of manifestations and properties characteristic of life must have arisen as a part of the process of the evolution of matter. Taking into account the recent discovery of methane in the atmospheres of Jupiter and the other giant planets, Oparin suggested that the infant Earth had possessed a strongly reducing atmosphere, containing methane, ammonia, hydrogen and water vapor. In his opinion, these were the raw materials for the evolution of life. In Oparin's formulation, there were first only simple solutions of organic matter, the behavior of which was governed by the properties of their component atoms and the arrangement of these atoms into a molecular structure. Gradually though, he said, the resulting growth and increased complexity of molecules brought new properties into being and a new colloidal-chemical order developed as a successor to more simple relationships between and among organic chemicals. These newer properties were determined by the interactions of these more complex molecules. Oparin posited that this process brought biological orderliness into prominence. According to Oparin, competition, speed of cell growth, survival of the fittest, struggle for existence and, finally, natural selection determined the form of material organization characteristic of modern-day living things.Normal | Teacher | Scholar