University of Washington, Seattle

BIOLOGY 180

RQ02-Evolution NS

1)What does the pattern component of the theory of evolution by natural selection state?

2. What does the process component of the theory of natural selection state?
3. Today biologists boil Darwin’s four postulates down to two conditions that result in

evolution. What are these conditions?

4. What observations suggest that M. tuberculosis antibiotic resistance is a trait with

heritable variation?

5. What observations suggest that in environments containing antibiotics, M. tuberculosis

individuals experience differential reproductive success based on their degree of resistance?

6. The top graph in Figure 22.13 (5th edition: 25.16) indicates that beak depth is variable in this population. What evidence did the researchers have that at least some of this variation was heritable?
7. Look at the middle graph in Figure 22.14 (5th edition: 25.17). Why didn't beak size

continue to increase, after the 1978 drought?

8. In biology, what does the word fitness mean?
9. In biology, what does the word adaptation mean?
10. In biology (and in science in general), what does the word theory mean?