"darwin's finches" reside on the galapagos islands. each species has a different type of break, however, they can all be traced back to one common ancestor. the different breaks are an example of

The correct answer would be adaptive radiation.

It is a natural phenomenon by which ancestor species diversify into new forms as a result of adaptation towards changing the environment, limited or different resources, new challenges or new ecological niches.

For example, Darwin's finches faced new niches, different environment, different types of food resources due to which they adapt to different species bearing beaks of different shapes and sizes.

answer; i believe the correct answer to the above question is ( friction)

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.