Change in the genetic composition of a population during successive generations, often resulting in the development of new species. The mechanisms of evolution include natural selection acting on the genetic variation among individuals, mutation, migration, and genetic drift.
The process by which species of organisms arise from earlier life forms and undergo change over time through natural selection . The modern understanding of the origins of species is based on the theories of Charles Darwin combined with a modern knowledge of genetics based on the work of Gregor Mendel. Darwin observed there is a certain amount of variation of traits or characteristics among the different individuals belonging to a population. Some of these traits confer fitness—they allow the individual organism that possesses them to survive in their environment better than other individuals who do not possess them and to leave more offspring. The offspring then inherit the beneficial traits, and over time the adaptive trait spreads through the population. In twentieth century, the development of the the science of genetics helped explain the origin of the variation of the traits between individual organisms and the way in which they are passed from generation to generation. This basic model of evolution has since been further refined, and the role of genetic drift and sexual selection in the evolution of populations has been recognized.
Find another word for emergence. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for emergence, like: rise, issue, evolution, materialization, appearance, development, emanation, appearance and see.
1-5 The emergence of the trumpets from the seventh seal.
The rising prosperity of wealthy nations and the emergence of more wealthy nations.
As a result of this emergence the stratigraphic break between the Ordovician and the Silurian is one of the greatest in the whole Palaeozoic group.
Thus as life is transcendent and yet immanent in body, and mind in brain, and both utilize their organs, so God, transcendent and immanent, uses the course of nature for His own ends; and the emergence both of life and mind in that course of nature evidences such a divine initiative as is assumed in the recognition of the possibility of miracles.
There can be little 1 We shall have to note the emergence of the doctrine of the resurrection of the righteous in later Judaism, which is obviously a fresh contribution of permanent value to Hebrew doctrine.