11. Patterns of speciation and extinction The rise and fall of biodiversity Four major mass extinctions of marine organisms: End of Silurian Devonian,
Speciation How new species originate. Speciation (a.k.a macroevolution) There are two patterns of speciation as evidenced by the fossil record –Anagenesis.
CHAPTER 24 ORIGIN OF SPECIES. CHAPTER 24 THE ORIGIN OF SPECIES Section A: What Is a Species? 1.The biological species concept emphasizes reproductive.
Figure 24.0 A Galápagos Islands tortoise. Figure 24.1 Two patterns of speciation.
Chapter 24 ~ The Origin of Species. I.Introduction A.Evolutionary theory also explains macroevolution, the origin of new taxonomic groups (new species,
Ap BIO Ch 24 Speciation (Macroevolution) and its processes.
MACROEVOLUTION - Speciation
General Biology (Bio107) Chapter 14 – The origin of species.
Chapter 24 Notes The Origin of Species. There is more to evolution than just explaining how adaptations evolve in a population. Evolution must also explain.
The Pace of Speciation
