Warm-up

2. Warm-up • You’ve learned the four principles of natural selection. Define natural selection in one sentence without using the following words: variation, competition, overproduction, adaptation, and “Survival of the fittest” • How do mutations relate to natural selection?

3. Click Darwin to watch 100 greatest inventions: natural selection

4. Copy this in notebook

5. Charles Darwin’s theory of evolution is based on the idea of natural selection. Natural selection is the process in which only the strongest organisms survive. These organisms adapt over long periods of time acquiring traits that make them bettered suited to survive and reproduce. Those organisms that do not adapt to changes in their environment cannot reproduce and become extinct. In this activity, you will model natural selection by competing for a limited food source in your environment.

6. Reflection Questions • Which type of bird was the 1st to die? What adaptation? • Which survived all rounds? What adaptation? • Compare results with prediction. Do your results support prediction? Explain. • What problems or sources of error exist from this lab? (any possible things that could of altered results that you saw in lab) • How does this model Natural selection • What would happen if we introduce a predator? • What is a mutation? • How would a mutation affect the outcome? • What is natural selection? • The Artic hare lives in snow covered mountains in Canada. The hare is hunted by foxes, wolves, and owls. Which trait is more likely to be inherited by new generations of hares: white fur or back fur?