PPT-8.2-Sources of Evidence for Evolution

SBI3U1 Evidence for Evolution The theory of evolution by natural selection was proven by the following methods Fossil Record Biogeography Anatomy Embryology DNA Fossils are found within the layers of sedimentary rock . Paul Alexander. University of Cambridge. Radio-mode Feedback. Fanaroff & Riley Class-I . 3C . 66B. Fanaroff & Riley Class-II . 3C 219. AGN Feedback via radio sources critical for evolution of massive galaxies. Variation in Living Things. SPECIES  - Group of organisms that interbreed. VARIATION - small differences between individuals of a species  . Some neither helpful nor harmful  . Some enable organism to be better suited to its environment.. A system of thinking about the types of evidence is as follows:. Rational Appeals. Anecdote. Analogy. Consequences. Effects. Contrasts. Categories. Comparisons. Examples. Quotes. Hard Evidence. Facts . IMSS . BIOLOGY . . ~. . . SUMMER . 2011. LEARNING TARGETS. To understand that biological evolution . involves . descent with modification. . To explain and give different types of evidence for the key concept of biological evolution: all life shares a common ancestor.. Evidence for Evolution. What is Evolution??. Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.. What are they? . How do we use them in our classrooms?. Dr. Melissa . Radeke. EDU 5340 Social Studies Methods. Primary Source Definition. Original materials.. Historians classify primary sources as artifacts, documents (including letters, journals, newspapers, birth certificates, licenses, etc.), visuals, recordings, or other sources of information created at the time of study.. 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. Organism DNA. 1a. Some of the strongest evidence for evolutionary relationships comes from studying the DNA of different organisms.. 1b. The fact that all organisms use the same DNA molecule to code for genetic information suggests that these organisms share a distant ancestor.. 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. In many states and districts, teachers and their students are preparing to meet guidelines and take examinations that require close attention to single documents. The educational benefits from such an approach can be numerous: students learn to read closely, to interpret documents in historical context, to ground argument in concrete evidence, and to explicate large historical meanings from primary sources. But perhaps above all, such documents can be a stimulus to the imagination. They can “humanize” history. And once the imagination is engaged, there is no limit to learning. . 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.. Evidence. Evidence. . of . common ancestry . among species comes from many sources.. . 2. FIVE PIECES OF EVIDENCE FOR EVOLUTION. G – Geographical . distribution . F – Fossil . evidence (remains of ancient organisms). Science. Comparison with blood chemical (‘B’) between humans and other vertebrates.. humans. -. chimpanzee. 0. chicken. 11. Rhesus monkey. 1. frog. 17. mouse. 8. lamprey. 29. Challenge answer. What organisms are most closely related to us? . Pd-2 . Anatomy and Physiology. Evidence for evolution can come in the form of anatomy and physiology. For example vestigial, analogous, and homologous structures. . Vestigial Structure:. The concept of vestigiality applies to genetically determined structures or attributes that have apparently lost most or all of their ancestral function in a given species. An example is the human appendix..