Over time, those who cannot live through the temperature differences/have undesirable qualities will die off. Overtime, those with desirable qualities are left and they will continue the population.
The population of the drier island would continue to decrease until only the large beaked finches were the only ones left. The island with plentiful rainfall would have a growing population and most of them would have smaller to medium sized beaks.
Hi! glycolipids and glycoproteins are important Because it helps to stabilise membrane structure.