Use your observations, together with two graphs, to make a comparison about the average beak size for the population of medium ground finches before and after the drought.
Peter and Rosemary Grant recorded data from over 1000 different finches. However, the graphs show data regarding only 100 individuals of a population. Suggest some the advantages and disadvantages of using this data set.
After the drought another set of data showed that the surviving finches had slightly longer wings and slightly larger bodies. Yet, peter and rosemary Grant stated that the trait that made difference for the survival of the population was beak depth. Explain this statement.
After analyzing data compare it to your expectation.
In 1983 it rained ten times more than normal. The island was overrun by vines that covered even the cactus. This changed vegetation caused the larger seeds became scarce. In this scenario, predict which beak shape will have an advantage for finches to eat and, therefore, to survive and reproduce.
Make a prediction about the average beak size in the population of medium ground finch in the year immediately after a very rainy year, compared to the years right after the drought occurred.