Natural Selection Review Questions

Click on the links below to find the answer to each of these questions.

1. Define natural selection.

2. What does the following curve show? [answer] What would the curve look like if there were little variation in height in this population?

3. List the conditions that are necessary for natural selection to occur. [answer]

4. Explain why the proportion of dark moths increased during the 1800s in England. [answer]

5. Give an example of how natural selection operates to produce changes in a species.