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ADAPTATION & EVOLUTION

ADAPTATION & EVOLUTION. I. Life Characteristics. 1. Highly Organized. 2. Transform Energy. 3. Reproduce. 4. Growth & Development. 5. Irritable & Adaptable. 6. Homeostasis. II. Forces Acting on Life. A. Natural Selection. 1. Definition.

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ADAPTATION & EVOLUTION

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  1. ADAPTATION & EVOLUTION I.Life Characteristics

  2. 1.Highly Organized

  3. 2.Transform Energy

  4. 3.Reproduce

  5. 4.Growth&Development

  6. 5.Irritable&Adaptable

  7. 6.Homeostasis

  8. II.Forces Acting onLife A.Natural Selection

  9. 1.Definition Variations within a population allows for varying success for survival and reproduction. 2.History E. Darwin(1775), T. Malthus(1798), J. Lamark(1798), C. Lyell (1840’s), & C.Darwin (1850) 3.Effects

  10. B.Genetics

  11. 1.Definition Study of the patterns of inheritance a.Blending Offspring were a blending of their parents oran intermediate form. b.Mendelian Showed how inheritance came from passing units of information from generation to generation.

  12. c.Mendelian Terms Homozygousvs.Heterozygous Allele Dominancevs.Recessive Genotypevs.Phenotype d.Hardy-Weinberg Principle Explains allelic frequencies in populations. Requirements for H-W: 1.random mating, 2.No mutations, 3.Large population size, 4.No immigration, and 5.No natural selection occurence H-W Equation is(p2+ 2pq +q2= 1)used to calculate the gene frequencies within a population.

  13. C.Mutation

  14. 1.Definition A random change in the genetic make-up of an organism that increases its success in a population. a.How? Deletions, etc. Viruses, Inversions, Chemicals, Random Combinations, Duplications,

  15. D.Environmental Forces

  16. 1.Allopatric Forces=separation of a population by geological changes

  17. 2.Sympatric Forces=separation of a population by behavioral changes

  18. E.Breeding Forces

  19. 1.Genetic Drift=random fluctuations of genes due to chance occurrence

  20. 1.Genetic Drift=random fluctuations of genes due to chance occurrence

  21. 2.Genetic Flow=random fluctuations of genes due to immigration or emigration

  22. III.OrganizingLife A.Criteria B.The Plan

  23. 1.History Aristotle, Anaxamander, &Linnaeus 2.Taxa D, K,P,C,O,F,G, &S

  24. Learning comes with understanding.

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