Medium Ground Finch Questions

Answer these questions in complete sentences.

1. What determines the color of your eyes ?
2. When is your eye color determined and fixed for the rest of your life?
3. What determines the depth of a ground finch's bill ?
4. When is the depth of a ground finch's bill determined and fixed for the rest of its life?
5. If an individual ground finch can't change it's bill depth, how does the ground finch population's bill depth change ?
6. What forces the changes to ground finch population's bill depth?
7. Draw a population histogram of the medium ground finch bill depth during El Niño years.
8. Directly underneath the histogram you just drew, draw a population histogram of the medium ground finch bill depth after several La Niña year.