Multiple choice

1. Scientists who argue that modern humans evolved from a single population believe that humans came from the continent of

A. Europe. 

B. Africa. 

C. Asia.

D. South America.

2. Any trace of a dead organism, such as an imprint in a rock, is called a

A. homologous structure. 

B. transitional form. 

C. strata.

D. fossil.

3. Most scientists now believe that birds evolved directly from bipedal

A. amphibians. 

B. lizards. 

C. dinosaurs.

D. marsupials.

4. The similarity of the characteristics of sheep and reindeer is due to their having a common ancestor. This sort of phenomenon is called

A. homology. 

B. convergent evolution. 

C. taxonomy.

D. parallel evolution.