Why does the selection of available seeds favor some beaks more than others? How, exactly, does the average beak depth change over time?

Why do "you" think the finches of the Galapagos Islands were so important in convincing Darwin that evolution explained the origin of species?

because the beaks are different and since they prefer other avaliable seeds.

because the population changes over time its called natural selection, in darwins drawings there were extremely different from eachother.

because when he drew normal finches and went to galapagos islands he saw that there were also finches but they looked completely different and he analyzed their beaks. there are animals who change over natural selection