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Transcript
Chapter 15 By: Meagan, Kerri &Tyson Evolution-Change over time is the process by which modern organisms have descended From ancient organisms Dates: February 12 1831 Captain: Charles Darwin Ship: H.M.S Beagle Destination: Around the world Animals found in the Galapagos Islands: •Land Tortoises •Darwin Finches •Blue Footed •Marine Iguna James Hutton- 1795 Theory of geologized change Forces change earth as surface shape Changes are slow The Earth is much older than thousands of years If population grew (more babies born then they die) Insufficient living spaced Food runs out Darwin applied his theory to animals Russell Wallace writes and essay summarizing evolutionary change in his field of work Gave Darwin the drive to publish his findings Natural Selection:\ Natural Variation: Differences among individuals of species Artificial Selection: Nature provides variation among different organisms and humans select those variations they find useful Evolution By Natural Selection: The struggle for existence Survival of the fittest Struggle For Existence Fossil Record Geographic Distribution of living things Homologous body structures Similarities in early development
