Population Genetics Answers

What will the average beak depth for finches be after 2 years of average rainfall followed by 3 years of 2 inches of rainfall?

Graph 1 Graph 2 Graph 3 Graph 4 Which of the above beak depth vs time graphs represent the change in finch beak depth that would occur during a sustained drought?

Graph 1 Graph 2 Graph 3 Graph 4 Which of the above beak depth vs time graphs represent the change in finch beak depth that would occur due to successive years of above average rainfall?