How does natural selection explain the
differences in finches on the outside if they all
came from the same finch in the center?

not sure but try c two haploid cells

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.