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Biology 21 Online
OpenStudy (anonymous):

To compare the relative ages of rocks, scientists sometimes use an easily recognized and widespread fossil type called A. a carbon fossil. B. a radioactive fossil. C. an index fossil. D. a sedimentary fossil.

OpenStudy (anonymous):

id have any idea @M00SE

OpenStudy (anonymous):

@Shenandoah

OpenStudy (anonymous):

b?

OpenStudy (anonymous):

My guss is d but I'm not sure

OpenStudy (anonymous):

c

OpenStudy (anonymous):

ima go with moose lol

OpenStudy (anonymous):

thanks

OpenStudy (jtfan2000):

I got d as well

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