Part Recall the steps of the scientific method:
1. Make observations.
2. Develop a hypothesis or make predictions.
3. Test the hypothesis.
4. Analyze the results.
5. Communicate the results.
Explain how the student in the article represented each step of the scientific method while developing his trench.
Describe what he used for dependent and independent variables.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.