PPT-Equilibrium, Speciation and Patterns in Evolution

Chapter 11 Biology Textbook KEY CONCEPT HardyWeinberg equilibrium provides a framework for understanding how populations evolve HardyWeinberg equilibrium describes populations that are not evolving . - Science and Bio - Technol ogy Vol. 3 , No. 4, December, 2011 27 Punctuated Equilibrium vs. Phyletic Gradualism Monalie C. Saylo 1 , Cheryl C. Escoton 1 and Micah M. Saylo 2 1 University of Antiq EQ:. What patterns can be observed in evolution?. Patterns of . evolution. A. Mass Extinctions. B. Adaptive Radiation. C. Convergent Evolution. D. Coevolution. E. Gradualism. F. Punctuated Equilibrium. The . formation of a new . species. 15.3 Speciation. What is a species?. A group of organisms with similar characteristics capable of producing fertile . offspring. Members of a . species. . share. the . Patterns of Evolution. Credits: 4. External. ! Before we begin…. From the . examination specifications…. Giraffe Evolution?. Revision. 12 bio stuff…. Stuff u should know from Year 12. Natural Selection. The rise and fall of biodiversity. Four major . mass extinctions . of marine organisms:. End of Silurian Devonian, Permian, and Cretaceous). Rise in diversity during Cambrian, Silurian, Cretaceous, and Paleogene. Evolution. Results of evolution. New species (speciation). Causes of evolution. Barriers between same species (gene pools). Geographical isolation -> leads to . allopatric. speciation. Temporal isolation -> leads to sympatric speciation. EQ:. What patterns can be observed in evolution?. Patterns of . evolution. A. Mass Extinctions. B. Adaptive Radiation. C. Convergent Evolution. D. Coevolution. E. Gradualism. F. Punctuated Equilibrium. The rise and fall of biodiversity. Four major mass extinctions of marine organisms:. End of Silurian Devonian, Permian, and Cretaceous). Rise in diversity during Cambrian, Silurian, Cretaceous, and Paleogene. Macroevolution/Microevolution. Macroevolution- One g. roup of animals. evolves into another….due to . large. scale changes that take place over . long. . periods of time.. . Microevolution- . Small. Finish vocabulary cards from yesterday. VOCABULARY QUIZ NEXT MONDAY!. TEST NEXT THURSDAY! -4 MORE DAYS!. Types of Speciation, Evolution & Isolation. Thursday. January 22nd . Currently there are . Sympatric Speciation. Sympatric Speciation occurs . without. geographic isolation, thus it occurs at a local level. . There is something within the environment that keeps a single species separated into two or more distinct groups.. Finish vocabulary cards from yesterday. VOCABULARY QUIZ NEXT MONDAY!. TEST NEXT THURSDAY! -4 MORE DAYS!. Types of Speciation, Evolution & Isolation. Thursday. January 22nd . Currently there are . They do this through a series of . proposed explanations for observed phenomena. called . hypotheses. . . These hypotheses are then tested over a period of years to determine if they are supported by facts or if they need to be revised.. After reading this module you should be able to. Explain . the processes of allopatric and sympatric speciation.. U. nderstand . the factors that affect the pace of . evolution.. Speciation can be allopatric or sympatric.