What is an index fossil?
o
a. a fossil found in rocks from one time period
b. a f...
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Biology, 11.10.2019 20:20 Homepage10
What is an index fossil?
o
a. a fossil found in rocks from one time period
b. a fossil that has vestigial structures
o
c. a fossil that contains rocks and minerals
d. a fossil that formed 300 million years ago
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