The evolution by natural selection results in adaptation. Evolution Concepts A. Count George-Louis Leclere de Buffon wrote the Natural History of Animals which contains a clear statement of possibility of evolution. B. Jean Baptiste de Lamarck, a student of Buffon, wrote extensively about evolution with logical arguements. C. Charles Darwin and Alfred Russel Wallace proposed the evolutionary process independently. The earth is very old and organisms change steadily throughout history of life.
All organisms are descendants of a common ancestor.
Life arose only once on earth. Species multiply by splitting into daughter species. Evolution proceeds with gradual changes in populations. Natural selection is a major agent in natural selection. B. Natural selection is the different contribution of offspring to the next generation by various genetic types belonging to the same generations.