Biology, 29.01.2021 18:50 kianarice55otaivh

Index fossils are found throughout the world and come from organisms which existed during limited periods of geologic time. Which of the following best describes what index fossils can be used to determine? A.
the way an organism went extinct
B.
the age of a layer of rock
C.
how an organism evolved over time
D.
when an organism first appeared on Earth

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