 HAPPY WEDNESDAY  Evolution Adaptation Fitness Natural Selection Turn in Homework (Cosmos Video Worksheet) Give me back your Project Handout. Bellwork: Quickwrite – Use the following in a 42 word quickwrite explaining what you have learned about Evolution so far. Evolution Adaptation Fitness Natural Selection Darwin Survival Reproduction

Front Back Definition of the word. Vocabulary Word A drawing that reminds you of the definition of the word. (Must use at least one color.)

Evolution Notecards Pre-AP Biology Due Friday (1/16/15) Adaptation Genetic Variation Vestigial Structure Biogeography Homologous Structures Artificial Selection Charles Darwin Migration Fitness Evolution Natural Selection Theory Fossil Record Common Descent Gene Flow Speciation Gene Pool Species Genetic Drift

Evolution: Bean Lab The purpose of this lab is to understand evolution by simulating the competition of different birds for a common food source. Each student will simulate different beak shapes (fingers, spoon, knife, and fork). In Charles Darwin’s On the Origin of Species, he stated that individuals best suited for a specific habitat will survive and pass their favorite traits on to their offspring. In this lab, students that obtain the most food will pass their beak shape to the next generation, while the students with the least amount of food will go extinct.

Problem: Which bird beak is the most successful at catching prey in a certain environment? Hypothesis: Write a hypothesis predicting which type of beak (fingers, spoon, knife, or fork) will be the most successful in collecting food. If the beak type is a _____________, then __________________________.

Procedure: Students will be divided into groups of 4. Each student represents a different bird species with different shaped beaks. For the first trial, one student will represent each beak shape: fork, spoon, knife, and fingers. Spread the beans provided in the box in front of you. The beans represent seeds which are the birds’ food. For thirty seconds, each bird removes beans, one at a time, from the paper towel using only their beak (fingers, fork, spoon, or knife). A couple things that must happen: The box must remain still in the middle of the table The food must be picked up and placed in your stomach (cup) The stomach (cup) must remain on the table You cannot steal from the competition After 30 seconds, count the number of beans each species has eaten. Record the data in the data table. The bird with the least amount of beans goes extinct. That bird must change its beak shape to the one who ate the most beans. Repeat this process two more times.

30 second Timer

Student Name: Trial 1 Trial 2 Trial 3 Final Beak shape # of beans Jessica Fingers 25 Spoon 35 Fork Tom 50 51 38 Derrick 46 41 Lisa Knife 4 55 42

Prepare a line graph. Use a different color line for each species and provide a key. -Graph Title: “Food collecting ability of four species of bean eaters.” -Y axis: # of beans collected -X axis: Trial # (represents the generations) -Lines: The graph will have 4 lines, one for each species in different colors. -Conclusion: Based on the results, describe the change in the populations over 3 generations. Explain the relationship between ability to gather food and the ability to survive.