1. EVOLUTION, DARWIN Natural Selection S.W.B.A.T.: Determine that what Darwin viewed in nature about the traits of living things helps organisms even today survive and adapt to their surroundings.

3. What Did Darwin’s Travels Reveal The diversity of living species was far greater than anyone had previously known These observations led him to develop the Theory of Evolution

4. How did tortoises and birds differ among the islands of the Galapagos? Each island had its own type of tortoises and birds that were clearly different from other islands

5. GALAPAGOS video of the island video of the island

7. Natural Selection The traits that help an organism survive in a particular environment are “selected” in natural selection

11. Evolution is when organisms change over time So, modern organisms descended from ancient ones

12. Evidence of Evolution Review Fossil Record provides evidence that living things have evolved Fossils show the history of life on earth and how different groups of organisms have changed over time

13. Primate Fossils

14. Primate Bone Structure

15. Primate Brain Capacity

16. Vestigial Organs Evidence of Evolution Organ that serves no useful function Present day organisms evolved from ancestors in which these organs were useful

17. Biochemical Evidence All living organisms are made of the same 20 common amino acids All living organisms have DNA as the code of life with the same 4 bases: adenine, thymine, cytosine, guanine

18. Homologous Structure Evidence of Evolution Body parts that are similar in structure in different organisms and seem to have developed from the zygote the same way Homologs may have different uses in different species

19. Similar Embryos Evidence of Evolution In their early stages of development, chickens, turtles and rats look similar, providing evidence that they shared a common ancestry.

20. Natural Selection Video http://science.discovery.com/videos/100- greatest-discoveries-shorts-natural- selection.html http://www.youtube.com/watch?v=vfmOaAz371M&N R=1&feature=endscreen Origin of Species Video