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  3. topic 2 changes in life over time for this topic...

Question: topic 2 changes in life over time for this topic...

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Topic 2 Changes in Life Over Time: For this topic, you will construct a concept sketch illustrating the main events in the history of life as observed from the fossil record. This sketch will show when the main types of organisms, such as trilobites and dinosaurs, appeared in the fossil record and when they became extinct or whether they are still around today. The change of fossils from older to younger rock layers is commonly called faunal succession, and it is the main way that geologists determine the age of fossil-bearing rock layers.

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