BIO 1306 Study Guide - Quiz Guide: Uniformitarianism, Catastrophism, Gradualism
Document Summary
Chapter 22 - descent w/modification: a darwinian view of life. Focused biologists on great diversity of organisms. He noted: current species are descendants of ancestral species. They are remains or traces of organisms from the past. Hypothesized that species evolve through use & disuse of body parts and. Lamarck"s hypothesis of evolution the inheritance of acquired characteristics. Mechanisms he proposed not supported by evidence. 1844: darwin wrote an essay on natural selectionas the mechanism of descent with modification, but did not introduce his theory publicly. !natural selection is a process in which individuals with favorable inherited traits are more likely to survive and reproduce. !in june 1858, darwin received a manuscript from alfred russel wallace, who had developed a theory of natural selection similar to darwin"s. !darwin quickly finished the origin of species and published it the next year. !darwin explained three broad observations!the unity of life!the diversity of life!the match between organisms and their environment.
