Evolution short review SW

According to natural selection, light colored tree trunks would favor

• light colored moths

• dark colored moths

• red colored moths

• red and light colored moths

Average phenotypes are favored in the environment, while extremes have lower survival rates.

• seasonal selection

• distruptive selection

• directional selection

• stabilizing selection

Which of the following is an example of a homologous structure?

• The wings of a butterfly and the wings of a bat

• The arms of a human and the arms of a whale

• The fins of a fish and the flippers of a penguin

• The eyes of a cat and the eyes of an octopus

Which of the following best describes natural selection?

• organisms with the best traits survive and reproduce

• The random change in allele frequencies in a population

• The movement of individuals into or out of a population

• The formation of new species from existing species

Which evidence supports the theory of common descent by showing similarities in early development?

• Fossil records

• Embryology

• Biogeography

• Analogous structures

Which of the following is a vestigial structure in humans?

• The appendix

• The heart

• The lungs

• The brain

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

Structures are similar in appearance but not in structure

• Vestigial 
• Homologous 
• Analogous Structures 
• Embryonic 

Which species’ DNA is most similar to the DNA of the toothed whale? 

• Hippopotamus 
• Baleen Whale
• Grazing Mammals
• Camels

A scientist compares DNA taken from four different living species. Which of the following statements is true?

• Species X evolved from Species Y.

• Species A and Z share a recent common ancestor.

• Species A and Species Y are the same.

• Species Y and Species Z can interbreed.