BIOL 101 1nd Edition Lecture 20 Outline of Last Lecture I. Practice Exam II. Chapter 8III. Chapter 9IV. Chapter 10Outline of Current Lecture I. ObservationsII. ConclusionsIII. Natural SelectionIV. ViewpointsCurrent LectureHow Populations EvolveClass DiscussionIn 17th, 18th century Europe—almost everyone believed in Creationism and that the earth was 6,000 years old (which was worked out as an estimate by Archbishop James Ussher in 1650). Superfecundity – the ability of a species to produce more offspring than the environment can supportI. Natural Selection (NS) a.k.a “Descent with modification” A. Observations by Darwin:1. Species tend to: over reproduce2. Individuals in a population: there is variation in a populationB. Conclusion – the varied traits that an individual inherits affects this individual’s abilityto: SURVIVE AND REPRODUCE Individuals whose characteristics best adapt them to their current environment are most likely to be selected (survive and reproduce) – DIFFERENTIAL REPRODUCTIVE SUCCESSThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Traits that are “better” than others for a particular environment become: More common in a populationC. Natural Selection (NS) = __differential reproductive success__. In other words, individuals whose characteristics best adapt them to their CURRENT environment are most likely to __survive and reproduce__.What makes an individual fit for their environment?- physically suited for their environment- ability to find food- find suitable mate- least visible predator- least susceptible for their environments- suited to the climateCreationist view – god created man in his current stateTheistic evolution – god helped with evolutionNaturalistic evolution – no
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