Multiple choice

1. In the evolutionary tree discussed earlier in this section, which two species of bears share the closest evolutionary relationship? Which two species of bears are most distantly related to one another?

a. closely: spectacled and giant panda; distantly: spectacled and sloth

b. closely: sloth and giant panda; distantly: spectacled and giant panda

c. closely: spectacled and sloth; distantly: spectacled and giant panda

d. closely: spectacled and sloth; distantly: giant panda and sloth

2. To what does the term macroevolution refer?

a. a change over time in a large population of organisms

b. an adaptation in which a small trait becomes larger over time

c. a field of study that attempts to identify similarities within all of this diversity and determine which species share an evolutionary relationship

d. an adaptation that is a clearly visible physical characteristic

3. What types of similarities do scientists consider when attempting to determine whether two organisms share an evolutionary relationship and a common ancestor?

a. historical comparisons

b. anatomical comparisons

c. developmental pattern comparisons

d. biochemical comparisons

e. all of the above

4. Which of the following individuals is/are credited with devising the bionomical system of classification?

a. Francis Crick

b. Charles Darwin

c. Rosalind Franklin

d. Carolus Linneaus

e. Barbara McClintock

f. Gregor Mendel

g.Alfred Wallace

h. James Watson