21. Evolution

Which of the following statements best describes the overall process of descent with modification?

The fossil record indicates that the earliest hominids most likely originated on which continent?

The ulna bone in the forelimb of a cat is homologous to which bone in the forelimb of a horse?

What were the benefits of arthropods adapting to live on land?

What are the three levels of biodiversity commonly recognized in the study of evolution and natural selection?

An increase in which atmospheric element is most closely associated with the rise of multicellular organisms such as trilobites?

Which factor is most strongly correlated with the loss of skin pigmentation in human populations?

Why can we still recognize the subjects of cave paintings thousands of years later?

Which evolutionary process is most likely to occur when populations of the same species become geographically isolated from each other?

Which of the following is the best definition of generation time in the context of evolution and natural selection?

Which statement best explains why temperature affects the gender of alligator hatchlings?

Which of the following types of life first appeared or diversified significantly during the Paleozoic Era?

Which of the following statements about the Cambrian Explosion is true?

Angiosperms are thought to have originated about __________ years ago.

Which of the following processes led to the development of new kinds of wheat and barley?