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Biology Agenda Spring 2011: Week 7 Chapter 15 Darwin’s Theory of Evolution Evolution 7. The frequency of an allele in a gene pool of a population depends on many factors and may be stable or unstable over time. As a basis for understanding this concept: a. Students know why natural selection acts on the phenotype rather than the genotype of an organism. b. Students know why alleles that are lethal in a homozygous individual may be carried in a heterozygote and thus maintained in a gene pool. c. Students know new mutations are constantly being generated in a gene pool. d. Students know variation within a species increases the likelihood that at least some members of a species will survive under changed environmental conditions. 8. Evolution is the result of genetic changes that occur in constantly changing environments. As a basis for understanding this concept: a. Students know how natural selection determines the differential survival of groups of organisms. b. Students know a great diversity of species increases the chance that at least some organisms survive major changes in the environment. c. Students know the effects of genetic drift on the diversity of organisms in a population. d. Students know reproductive or geographic isolation affects speciation. e. Students know how to analyze fossil evidence with regard to biological diversity, episodic speciation, and mass extinction. March 8 108 min WarmUp: Agenda / Finish Geologic TimeLine InClass: Formative Assessment Evolution Lecture: Speciation and Genetic Drift Homework: NO HOMEWORK TONIGHT March 9 38min WarmUp: STAR 58-61 More Evolution InClass: Finish Speciation Flow Chart Homework: 17.1 guided reading 45min 45min 18min 18min 20min DUE NEXT CLASS March 11 108min WarmUp: Star Review Questions 11-13 Enzymes/Organelles13min InClass: What is Half Life? P420 45min Test: Summative Assessment Evolution 30min InClass: 35.1 Guided Reading 20min Homework: Finish 35.1 Guided Reading DUE NEXT CLASS Biology WarmUp Copy ALL of these assignments into your binder Including dates, WarmUps, InClass assignments AND page numbers! March 8 WarmUp: Agenda / Finish Geologic TimeLine InClass: Formative Assessment Evolution Homework: NO HOMEWORK TONIGHT March 9 WarmUp: STAR 58-61 More Evolution InClass: Finish Speciation Flow Chart Homework: 17.1 guided reading DUE NEXT CLASS March 11 WarmUp: Star Review Questions 11-13 Enzymes/Organelles InClass: What is Half Life? P420 Test: Summative Assessment Evolution InClass: 35.1 Guided Reading Homework: Finish 35.1 Guided Reading DUE NEXT CLASS