Exam 11: Evidence for Evolution

Although snakes and dogs are different species,they both have a bony vertebral column surrounding and protecting the nerve cord running down the center of their back.This column of bone is an example of a ________ trait and evidence of snakes and dogs sharing a common ________.

Humans bred cows specialized for milk production by allowing female cows that produce large quantities of milk to mate only with male cows with mothers that also produced large quantities of milk.This is an example of ________ selection.

Whales have tiny thighbones embedded in the skin next to their pelvis.This is an example of

How can a researcher determine if the mutations to the RNA polymerase complex or the mutations in the rho gene were caused by the growth in increased temperatures or if they were merely selected for by growing the ancestral E.coli in the warmer temperatures?

The following image shows genetic comparisons of human,chicken,mouse,and chimpanzee.The shaded regions show nucleotide differences.This data supports that ________ are more closely related to ________ than to ________.

Whale DNA is more similar to hippo DNA than to the DNA of any other mammal.This indicates that