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Evolution, Natural Selection, Taxonomy, and Anthropology
- 1. Evidence of Change Evolution
- 12. Natural Selection and Speciation
- 15. The Voyage of the Beagle: Ports of Call Noted that populations of organisms were slightly different from place to place Each group was modified to their specific environment
- 17. Land Iguana Marine Iguana The Galapagos Iguanas
- 21. The Origin of Species Interactive Exploration The Galapagos Finches
- 22. Charles Lyell Darwin Pieces Together the Puzzle Author of “ Principles of Geology” This book helped Darwin realize that the earth is old and changes slowly over time.
- 27. Darwin’s View of Evolution Darwin Pieces Together the Puzzle Those giraffes with longer necks got more food and were better able to survive to reproduce, passing on the long-neck genes to their offspring. Over time, giraffes evolved longer necks.
- 28. “ Of course, long before you mature, most of you will be eaten.” 4 Key Ideas of Natural Selection
- 33. Darwin Today… Natural Selection in action … causes a frequency of certain alleles in a population to increase or decrease over time!
- 37. Speciation Results in Biodiversity
- 48. Two populations live in different habitats and mating occurs in those habitats, thus their own gene pool. Land Iguana Marine Iguana Ecological Isolation
- 63. Evolution Evidence to Support Evolution
- 68. Miller-Urey Apparatus Evidence to Support Evolution
- 79. Plate Tectonics
- 82. Direct Evidence of Evolution
- 87. Missing Link?
- 90. Relative Dating of Fossils
- 95. Carbon-14 Dating - Determines the age of fossils of a biological origin up to approx. 50,000 years old. - used in dating things such as bone, cloth, wood, plant fibers, etc. 5,700 year is C 14 half-life
- 97. Half-life of carbon-14 is 5730 years
- 98. Half-life of carbon-14 is 5730 years 22,920 11,460 28,650 17,190
- 99. Radiometric Dating Evidence to Support Evolution Radioactive Parent Stable Daughter Half life Potassium 40 Argon 40 1.25 billion yrs Rubidium 87 Strontium 87 48.8 billion yrs Thorium 232 Lead 208 14 billion years Uranium 235 Lead 207 704 million years Uranium 238 Lead 206 4.47 billion years Carbon 14 Nitrogen 14 5730 years
- 108. Human Evolution