PPT-Evidence for Evolution Homologous

Structures features similar in structure but appear in different organisms with different functions Analogous structures structures similar in function but are not similar in origin Vestigial . Homologous and Analogous Structures. Need to Know. The difference between homologous and analogous structures and how this relates to evolution.. Convergent evolution. Concept 19.3: Evolution is supported by an overwhelming amount of scientific evidence. Homologous Structures (flowers). Broccoli and Cauliflower evolved from Mustard. print. Homology: A Bouquet of Broccoli One wouldn't normally munch on a rosebud or snap off a dandelion flower for a quick snack. But in fact, in terms of homologies, when you eat broccoli or cauliflower, you are doing just that. Although not scented or suitable for centerpieces, the green tips of broccoli and the white tips of cauliflower are actually flowers. Through many generations of artificial selection, farmers modified the bright yellow blooms of the wild mustard plant into the edible, vegetal plant parts you'll find nestled next to the ranch dip on the hors d'oeuvre tray. . Unit 6: Seventh Grade. Theory vs. Law. An idea that has . not. been proven to be unequivocally true. Examples:. Big Bang. The extinction of the dinosaurs. An idea or truth that . has . been proven to be unequivocally true. “Evidence for Evolution”. We will look at major evidence supporting theories of evolution:. Fossil Record . Comparative Anatomy . Biogeography . Biochemistry. Evidence Supporting Theories of Evolution . There is overwhelming evidence for the evolution of life on Earth. . Evolution in summary. Evolution occurs when heritable characteristics of a species change. . Evolution at its most fundamental level simply describes a . LAMARCK (1744 – 1829) . He proposed . 3 theories. to explain how species change…. Theory of Need. Theory of Use and Disuse. The Theory that Acquired Traits Can Be Passed on to Offspring.. August Weismann (1834-1914). What do we use in order to determine evolutionary relationships?. Fossil Record. Anatomical Evidence. Molecular Evidence. Embryological Evidence. Evidence for Evolution. Fossil Record. Evidence for Evolution. By Dr. J. Suris Soto. Objectives . By the end of this lesson you should be able to . List several examples of evidence for evolution.. Explain how fossils, and the fossil record document the descend of modern species from ancient ancestors.. A hypothetical trace of evolution. One original common ancestor. Scientists use both morphology and genetics to produce phylogenic trees. Morphology- share similar physical characteristics. Analysis of genetic similarity. is the process of change over time.. Evidence of evolution. . Biogeography. is the study of where organisms live now and where their ancestors lived in the past.. Patterns in the distribution of living and fossil species tell us how modern organisms evolved from their ancestors.. . SYFTET. Göteborgs universitet ska skapa en modern, lättanvänd och . effektiv webbmiljö med fokus på användarnas förväntningar.. 1. ETT UNIVERSITET – EN GEMENSAM WEBB. Innehåll som är intressant för de prioriterade målgrupperna samlas på ett ställe till exempel:. R. ecombination. 2. . Site-Specific . R. ecombination. 3. DNA . Transposition. Homologous Recombination at the Molecular Level. DNA BREAKS ARE COMMON AND INITIATE RECOMBINATION. Recombination repair DNA breaks by retrieving sequence information from undamaged DNA. Advanced Higher Biology. Miss A Aitken. National 5 Re-Cap. Haploid: One set of chromosomes – 23 . All gametes (sex cells – sperm and egg) are haploid. Diploid: Two sets of chromosomes – 46 (or 23 pairs). . The process by which organism change over time. Based on science, not opinion.. Darwin. :. Evolution is descent with modification. Evolution. :. changes through time. Species accumulate difference.