Unit 8 Sample Worksheet
Look at the image and answer the 9 questions below!


Look closely at the diagram illustrating fossils in layers of rock over time. Assume that the rock is sedimentary rock and that the layers have not been disturbed by earthquakes or other events. Use your observations to answer the following questions:
1. Why are fossils in layers of rock?
2. What is most likely true about the process by which the layers were formed?
3. What does the existence of fossils at different layers tell you about biological evidence of evolution?
4. What kind of animals and plants would you expect to find at the top of the layer?
5. Compare the anatomies of the fossils in the layers. Which fossils seem to be of closely related organisms? What additional forms of evidence will help you determine if they are closely related?
6. Which fossils look similar to organisms that live on earth today? Pick one fossil from the diagram and explain how the evidence on the fossil later could be used to determine the lineage of a similar modern-day organism.
7. Which organisms in this fossil record would you expect to have the most similar embryological development?
8. Which organism in this fossil record would you expect to have similar DNA?
9. Compare and contrasts the evidence of evolution (fossils, embryological, development, and DNA). Which evidence is the strongest? Explain your reasoning.

This assignment is worth 20% of my grade!! Will give brainliest if you do good.