GLY-1842 Lecture 16: oct 7
Document Summary
- science has evolved through multiple stages. -hypotheses are erected &discarded, leaving those that. All present-day organisms are related, and that they have descended with modifications from organisms that lived during the past. (but not completely wrong, we now know) The french botanist-geologist jean-baptiste pierre antoine de lamarck (1744 : in 1809 proposed the first formal, widely accepted theory of evolution. Although his mechanism to account for evolutionary change has since been discredited, he nevertheless made important contributions to science. Those organisms best adapted to their environment will survive, out-reproducing less-adapted organisms and passing their adaptive traits to their offspring. Proposed by darwin & wallace in 1859. Earth was very old (much more than 6 ka) If the morphology is the same, fossils the same , they"re the same species. 1859: on the origin of species by means of natural selection. Excess reproduction, thus a struggle for survival.
