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Biology, 08.04.2020 21:00 aishan49

What is an index fossil?
A. A fossil that contains rocks and minerals
B. A fossil found in rocks from one time period
C. A fossil that formed 300 million years ago
D. A fossil that has vestigial structures


What is an index fossil? A. A fossil that contains rocks and minerals B. A fossil found in rocks fro

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What is an index fossil?
A. A fossil that contains rocks and minerals
B. A fossil found...
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