Beak of the Finch

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Guiding Question:  What mechanism caused the evolution of the medium ground finch over time?

 

Directions:  Gather evidence from this page to support your claim.  You may not use any other webpages or sources.  Organize your evidence in a Claim Evidence Reasoning poster on the whiteboard.  

Step 1)  Gather Evidence
Step 2)  Make a Claim
Step 3)  Use reasoning to connect your evidence to your claim.


Evidence

Mean (average) beak depth of medium ground finches on Daphne Major from 1976 to 1985. 

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