State Lab: The Beaks of Finches (page 117) 1. You will turn in the answer packet (pages 125 to 130) 3. Count off by letters (A to L) 4. Sit next to your.

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Presentation transcript:

State Lab: The Beaks of Finches (page 117) 1. You will turn in the answer packet (pages 125 to 130) 3. Count off by letters (A to L) 4. Sit next to your partner 2. Put desks in groups of 2

A. B. D. C. E. F. G. H. I. J.K.L. 4. Pick up your beak.

A. B. D. C. E. F. G. H. I. J.K.L. 5. Do questions 1 through 4 of lab

State Lab: The Beaks of Finches (page 117) 6. ONE partner pick up a large dish with seeds (environment) and a small dish (your birds gastrointestinal (GI) tract = digestive system). 7. Only ONE seed can be eaten at a time!! 8. Don’t count seeds that hit the table 9. Practice now

State Lab: The Beaks of Finches (page 117) “Round One: Feeding with no competition” You are all on the large island of Isabela in the Galapagos.

State Lab: The Beaks of Finches (page 117) “Round One: Feeding with no competition” - 4 trials (2 per person) - transfer as many seeds as possible in 30 seconds - average the four trials - must collect 13 seeds (average) per trial to survive on this island.

State Lab: The Beaks of Finches (page 117) “Round One: Feeding with no competition” 1. If you collected fewer than 13, you must “migrate” to the island of Santa Cruz 2. Santa Cruz has larger seeds. 3. One person from each migrating group please exchange seeds

State Lab: The Beaks of Finches Beaks that were…Beak Types Characteristics of beaks (size and shape) Present at the beginningA through L Successful Round 1E, I, B NOT successful Round 1A,C,D,F,G,H Successful Round 2 Original island (Isabela) E, I, B Successful Round 2 New island (Santa Cruz) A, C, F NOT successful Round 2 (either island) D,G,H (extinct) Successful Round 3 Original Island (Isabela) E, I, B Successful Round 3 New Island (Santa Cruz) C, F NOT successful Round 3 (either island) A (extinct) Class Results

State Lab: The Beaks of Finches (page 117) “Round two: Competition” - you will now compete on your island - if you get less than 13, you are extinct! - 4 trials, 30 seconds each - feed from the same dish - 30 seeds only on the island

State Lab: The Beaks of Finches Beaks that were…Beak Types Characteristics of beaks (size and shape) Present at the beginningA through L Successful Round 1 NOT successful Round 1 Successful Round 2 Original island (Isabela) Successful Round 2 New island (Santa Cruz) NOT successful Round 2 (either island) Successful Round 3 Original Island (Isabela) Successful Round 3 New Island (Santa Cruz) NOT successful Round 3 (either island) Class Results

State Lab: The Beaks of Finches (page 117) “Round three: Increased Competition” - You will now compete on your island with ALL remaining members of your population. - if you get less than 13, you are extinct! - 4 trials, 30 seconds each - ALL finches feed from the same dish on each island (10 x # groups of seeds only).

State Lab: The Beaks of Finches Beaks that were…Beak Types Characteristics of beaks (size and shape) Present at the beginningA through L Successful Round 1 NOT successful Round 1 Successful Round 2 Original island (Isabela) Successful Round 2 New island (Santa Cruz) NOT successful Round 2 (either island) Successful Round 3 Original Island (Isabela) Successful Round 3 New Island (Santa Cruz) NOT successful Round 3 (either island) Class Results

State Lab: The Beaks of Finches