17.1 QUIZ

In Darwin's time, biologists were arguing that life changed in a process of ​ (a)   . Some of the evidence for changing life came from ​ (b)   , the preserved remains or traces of ancient organisms.

• hybridization

• replication

• revolution

• embryos

• evolution
• fossils
• skeletons
• scales

Other biologists of Darwin's time had proposed that living things had changed over time. Which feature distinguished Darwin's theory of evolution from the proposals of the other biologists?

• an argument that evolution could occur

• an explanation of how evolution occurs

• evidence of the origin of life

• evidence that living things change over time

On Darwin's voyage, he observed ostriches and rheas living on grasslands on separate continents. These two types of birds are similar, but not identical. How did Darwin apply these observations?

• He tested the birds to see if each would survive in the other's environment.

• He developed hypotheses to explain the distribution and differences of the birds.

• He concluded that one of the birds must have evolved from the other bird.

• He developed hypotheses to explain how each bird produced more of its own kind.

Darwin observed a variety of tortoises on the Galapagos Islands. These observations provided evidence for which of these statements?

• a. Species vary locally.

• b. Species vary over time.

• c. Island species are identical to mainland species.

• d. Island species are unrelated to mainland species.

The diagram compares the sizes of the armadillo, a modern animal, and the glyptodont, an ancient animal that resembled an enlarged armadillo. Which of the following statements is MOST STRONGLY supported by the evidence shown in the diagram?

• Ancient animals were either larger or smaller examples of modern animals.

• Ancient animals grew much larger than modern animals because of their environment.

• Ancient animals were identical to modern animals, but fossil evidence can distort their traits.

• Ancient animals resembled modern animals in some ways, but differed in other ways.

Match the example of Darwin’s observations to the statement for which it provides evidence.

Rabbits live in grasslands in Europe, but not in South America and Australia.

• I. Species vary locally

• II. Species vary globally

• III. Species vary over time

Match the example of Darwin’s observations to the statement for which it provides evidence.

Brown birds with a variety of beak shapes live on the Galapagos Islands.

• I. Species vary locally

• II. Species vary globally

• III. Species vary over time

Match the example of Darwin’s observations to the statement for which it provides evidence.

As shown by fossils, many ancient organisms resembled modern organisms, but were not identical to them.

• I. Species vary locally

• II. Species vary globally

• III. Species vary over time