Question

Darwin believed that the birds of the Galapagos Islands provided evidence of a, geographic isolation
b, reproductive isolation
c, the origin of new species
d all of the above are correct
e only b, and c. are correct

What does the word "evolution" mean to a modern evolutionary biologist?
a genetic changes in populations over time
b changes observed in the fossil record c changes in life over geological time
d changes caused by nucleic acids
e changes caused by DNA but not by RNA