Why were the scientists concerned about the glue used to reattach the birds’ tails? they did not know if it would hold the tails in place very long. they were worried it might hurt the birds. they were afraid it could not be removed. they thought its smell might keep females away.

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .