I believe the answer is adaptation
Answer:
we take longer to reproduce sadly.
The finch population on each island was unique. (correct statement) This is due to evolution, the finches beak size is a good example as the nuts on each island were different and the larger/smaller a beak was, it represented a change in the finch population so that they could break open the nuts easier.
Hi this is called the Johnston's organ.
Hope this helps.
I do not know who christian Kane is :/