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OpenStudy (heathero):
Trilobites are index fossils because they ____. a. changed slowly through time c. exhibit specific characteristics b. lived over large areas of the world d. all of the above
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OpenStudy (keigh2015):
It's D
OpenStudy (gottennis121):
Please no direct answers, Zach. :)
OpenStudy (keigh2015):
Ok, sorry.
OpenStudy (gottennis121):
The reason that it is D is because I know it is takes a long time for any fossil to decay and change, but also that they are all around the world. So, it must be D. :)
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