Question 1 • CV Q4 M/J Science 3 Adv 2002110 Compacted Review of Grade.7.Life for SSA Prep
The fossil record is incomplete, so it is not a complete history of every organism that lived. Fossils provide evidence of relationships and common ancestry, help scientists build a timeline of Earth’s history, and show which organisms lived during overlapping periods. In undisturbed rock layers, lower layers are generally older than higher layers, so statement E reverses the age relationship.
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