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Explain the manner in which a penguin wing became flattened overtime from a wing into a flipper. (Hints: look at it from a geneticstandpoint. Describe the stimulus from the environment thatselected for penguins with flattened wings. Describe what happenedto penguins that did not have flattened wings.)
Be able to explain why penguins and polar bears do not live in the same place. Be able to explain what the role of plate tectonics was in why they live in different places.