If the environment on the island changed and the seeds of more of the plants became harder to crack open, describe what the graph might look like after many years have passed.

There are several ways that the graph may look like after many years have passed if the environment had changed and seeds were harder to open for the finches. A few ways it would be different is the the curve for species 1 may be eliminated altogether. The curve for species 1 may/would shift to the right, and both of the curves could possibly show an increase in their beak strength. 

The correct answer is:       [c]:   "organisms that are sensitive to changes in temperature would die. "