Did the finches that darwin observed on the galapagos islands show evidence of evolution? explain

When mitochondrial dna from living relatives was compared with mitochondrial dna from the skeletons, scientisits determined that skeletons 3,4,5,6 and 7 were members of the romanov family. which of these skeletons can be identified by name based on the evidence you have? explain your answer.

Sharks depend on production for survival

Can an organism fill more than one trophic level?