Speciation. Introduction Species continue to evolve Changes that occur within species (microevolution) are easy to understand – Faster-running cheetahs.
Learning Goal Examine how life continues to evolve within a changing environment.
Evolution and Biogeograhy June 20, 2006 Lecturer: Meg Grantham.
Evolution Chapters 19 through 22. Learning Objectives Compare microevolution to macroevolution Define and discuss natural selection Relate Darwin’s contributions.
Evolution and Biogeograhy
Learning Goal
SPECIATION. MICROEVOLUTION Microevolution is the change in allele frequencies within a population over a few generations Insects that carry the allele.
I. REPRODUCTIVE ISOLATING MECHANISMS in order for one population to become very different from another, they must be reproductively isolated, there are.
Speciation
