Slide 1 Speciation Slide 2 Introduction Species continue to evolve Changes that occur within species (microevolution) are easy to understand – Faster-running cheetahs –…

Slide 1 Learning Goal Examine how life continues to evolve within a changing environment Slide 2 Speciation and extinction have occurred throughout the Earth’s history.…

Slide 1 SPECIATION Slide 2 MICROEVOLUTION Microevolution is the change in allele frequencies within a population over a few generations Insects that carry the allele which…

Slide 1 I. REPRODUCTIVE ISOLATING MECHANISMS in order for one population to become very different from another, they must be reproductively isolated, there are Prezygotic…

Evolution and Biogeograhy June 20, 2006 Lecturer: Meg Grantham Adaptive Features of Organisms Ancestral descent with modification â something arises that makes organism…

Learning Goal Examine how life continues to evolve within a changing environment Speciation and extinction have occurred throughout the Earthâs history. Speciation The process…

Evolution and Biogeograhy June 20, 2006 Lecturer: Meg Grantham Adaptive Features of Organisms Ancestral descent with modification â something arises that makes organism…

Evolution Chapters 19 through 22 Learning Objectives Compare microevolution to macroevolution Define and discuss natural selection Relate Darwinâs contributions to our overall…

Speciation Speciation 1 Introduction Species continue to evolve Changes that occur within species (microevolution) are easy to understand Faster-running cheetahs Colourful…