Exam 10: Evidence for Evolution

The fact that small, nonfunctioning hind legs are found in the skeletons of many snakes suggests that snakes

A fossil is found in Africa and South America, but nowhere else in the world. What does this tell us about this organism?

Why do human embryos develop gill slits?

Which of the following statements about evolution is true?

Match each example to the type of evidence supporting evolution. -Indohyus (an extinct ancestor to the whale) has whalelike ears and slender legs tipped with hooves.

Two different species may have similar features because of

Pangaea is

Placing a human gene into a plant produces the same protein as would be produced in a human. Some of the genes in plants are similar to human genes; others are very different. What does this information indicate about the relationship between humans and plants?

A species of cave beetle that lives in total darkness is blind but has remnants of what looks like eyes. These "eyes" are

When comparing certain amino acid sequences in the protein hemoglobin of humans to those of other animals, scientists found that baboons had seven amino acids that were different than the human protein, dogs had 10 amino acids that were different than the human protein, gorillas had one amino acid that was different than the human protein, and lemurs had eight amino acids that were different than the human protein. Which of these animals is most closely related to humans?

The human appendix is an example of a(n) ________ structure.

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.

Equus (horses) have a single toe on their hoof, while Hyracotherium (the ancestor to horses) had four toes. Which of the following evidence would support this conclusion?

Explain how an intermediate fossil can provide evidence for the lineage of current species.

Two fossils are found in a hillside. Fossil A was found in an upper layer and fossil B was found in a lower layer. Which of the following statements is true?

The following image shows genetic comparisons of human, chicken, mouse, and chimpanzee. The shaded regions show nucleotide differences. Which of the following statements is supported by this data?

What is biological evolution?

Both humans and whales evolved from a common ancestor. Although our forelimbs are quite different, they are made of the same bones. This is an example of a(n)

Match each example to the type of evidence supporting evolution. -Bats have the same forelimb bones as humans, but the size of these bones is different.

Breeding programs for farm-raised chickens result in a variety of unusual colors and feathers. Is this an example of evolution?