A scientist finds a fossil that she thinks might make a good index fossil.
Which characteristic does this fossil most likely have?
O It is the remains of an organism still found alive today.
O It is the remains of an organism that is found in abundance nearby.
O It is the only fossil for this type of organism that has ever been found.
O It is the remains of an organism that lived in a narrow geographic area
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A scientist finds a fossil that she thinks might make a good index fossil.
Which characteristic doe...
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