Problem:
Ground finches feed on seeds from different sizes, in different islands from the Galapagos Archipelago. The populations have beaks of different sizes. Finches with small beaks eat small seeds, finches with intermediate size beak eat mostly seeds of medium size, and finches with big beak eat mostly big seeds. But ... at the Island of Santa Cruz, seeds of intermediate sizes are eaten by many other species, and Ground finches are outcompeted.
Required:
Question 1: What will happen with the beak size of the Ground finches on Santa Cruz Island?
Question 2: What type of natural selection is this? Explain your answer.