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8 April, 09:52

What is an index fossil?

A. A fossil formed by the impression of a once-living thing

B. A fossil that is found only in one particular time period

C. A fossil that appears to show an evolutionary change from one

species to the next

D. A fossil that appears periodically throughout Earth's history

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  1. 8 April, 10:15
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    The answer is B. Is found only is a particular time period
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