Slide 1 Slide 2 3 Causes of Deviation from Equilibrium  1. Natural Selection ○ Stabilizing selection ○ Disruptive selection ○ Directional selection  2. Genetic…

Slide 1 Figure 24-9-Table 24-1 Slide 2 Figure 24-4a Living species “succeed” fossil species Fossil sloth from South America Present-day sloth from South America Slide…

Slide 1 Biology Ch. 16 Review Slide 2 Which of the following statements describe what all members of a population share? 1.They are temporally isolated from each other. 2.They…

Slide 1 Chapter 23 Slide 2 The term evolution is used to describe A.heritable changes in characteristics of a population from one generation to the next. B.any change in…

Slide 1 1 Competition Chapter 13 Slide 2 2 Outline Resource Competition  Modes Niches Mathematic and Laboratory Models  Lotka-Volterra Competition and Niches  Character…

Slide 1 Evolution and Natural Selection I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection - Charles Darwin,…

Slide 1 An example of natural selection The premises 1. Phenotypic variation in a population. 2. Phenotypic variation has a genetic component 3. Differential reproductive…

Slide 1 Ch. 23 Warm-Up Use the following information to help you answer the question below: Population = 1000 people AA = 160Aa = 480aa = 360 1.What are the genotypic frequencies?…

Slide 1 17.3 – The Process of Speciation Chapter 17 – Evolution of Populations 17.3 The Process of Speciation Slide 2 17.3 – The Process of Speciation Isolating Mechanisms…

Slide 1 Development of Darwin’s idea Slide 2 Slide 3 An example of natural selection The premises 1. Populations exhibit phenotypic variation. 2. The phenotypic variation…