Question
18. A species of finch has been studied on one of the
geographically isolated Galapagos Islands for many
years. Since the island is small, the lineage of
every bird for several generations is known. This
allows a family tree of each bird to be developed.
Some family groups have survived and others have
died out. The groups that survive probably have
A. interbred with other species.
B. inherited some advantageous variations.
C. found new places on the island to live.
D. been attacked by more predators.
Answer
B. inherited some advantageous variations.