1. State Standard SB5D. Relate natural selection to changes in organisms Natural Selection (15.3)

2. Evolution Natural Selection  Nature acts to select the individuals that are best ____________ for survival and reproduction in a particular ____________ 15.3 Natural Selection-Speciation-Resistance Chapter 15

3. Principles of Natural Selection Evolution  Individuals in the population show ____________.  The variations are ____________.  Members of the population have more offspring than can survive on available resources (____________).  Variations that increase reproductive ____________ have a greater chance of being ____________ on. Chapter 15 Natural selection takes place when…

4. 15.3 Natural Selection-Speciation-Resistance Industrialization & the peppered moths

5. Evolution  ____________ selection operates to ____________ ____________ expressions of a trait when the average expression leads to higher fitness. 15.3 Natural Selection-Speciation-Resistance Chapter 15 Ex: Peppered Moths before the Industrial Revolution

6. Evolution  ____________ selection makes an organism more fit by selecting ____________ ____________ ____________. 15.3 Natural Selection-Speciation-Resistance Chapter 15 Ex: Pollution from the Industrial Revolution caused directional selection in the peppered moths.

7. Evolution  ____________ selection is a process that ____________ a population into two groups. 15.3 Natural Selection-Speciation-Resistance Chapter 15 Ex: Different rock types in the same biome will favor different coat varieties of these mice

8. Evolution  ____________ selection operates in populations where males and females ____________ significantly in appearance.  Qualities of sexual attractiveness appear to be the ____________ of qualities that might enhance survival. 15.3 Natural Selection-Speciation-Resistance Chapter 15

9. Evolution Adaptive Radiation – AKA Divergent Evolution/Speciation  Can occur in a relatively short time when one species gives rise to many different species in response to the creation of ____________ ____________ or some other ecological opportunity 15.3 Natural Selection-Speciation-Resistance Chapter 15

10. Evolution Coevolution  The relationship between two species might be so close that the evolution of one species ____________ the evolution of the other species.  Associated with ____________ 15.3 Natural Selection-Speciation- Resistance Chapter 15

11. Evolution  ____________ species evolve ____________ traits because of similar environmental pressures. Convergent Evolution 15.3 Natural Selection-Speciation-Resistance Chapter 15

12. Evolution Rate of Speciation  Evolution proceeds in small, gradual steps according to a theory called ____________.  ____________ ____________ explains rapid spurts of genetic change causing species to diverge quickly. 15.3 Natural Selection-Speciation-Resistance Chapter 15

13. Evolution 15.3 Natural Selection-Speciation-Resistance Chapter 15