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Stage 1
Answer 3 questions correctly in a row.

This diagram shows fossils in an undisturbed sedimentary rock sequence.

A diagram with three rock layers, with the deepest layer at the bottom and the shallowest layer at the top of the diagram. A rock layer with a ginkgo leaf is below a layer with an insect, which is below a layer with a mammal tooth.

Which of the following fossils is

older?

Select the more likely answer.

mammal tooth

ginkgo leaf

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U.5Interpret evidence from fossils in rock layers