BIOL 1202 : Materials For Test 1
Document Summary
Jean-baptiste lamarck: use & disuse, bodies of living organisms are modified through the use or disuse of parts. Selective breeding of organisms to encourage the occurrence of desirable traits: analogous to natural selection. Figure 22-9: homologous & analogous structures, homologous. Ladder of nature: evolution not about climbing "ladder of nature" from lower to higher, evolution is a "bush" with lineages branching from one another, analogous. Structures that are similar in function but not in structure and developmental and evolutionary origin: convergent evolution. Similarity between 2 organisms, structures, or molecules due to independent evolution along similar lines rather than descent from a common ancestor: fossil record. Show change in organisms through time: change in types of organisms, past organisms differ from present-day organisms, many species have become extinct, not only provides evidence of small-scale changes but of origin of major groups, e. g. the cetaceans.
