Review the information provided in the graph to answer each question below.
After submitting your answer, you will be provided feedback to check if your response is correct.
(This activity contains 6 questions.)
1. What does the curvy line represent?
2. Finch beaks don’t grow or shrink much once the bird reaches maturity. What is responsible for the average beak size changing from year to year?
3. Three droughts and one very wet year are highlighted. Why is that information included here?
4. If you wanted to make predictions about finches’ beak size in the future, what information would be helpful?
5. Is there an “optimum” beak size for a finch? How does this figure help you answer that question?
6. What do you think is the “Take-Home Message” of this graph?
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