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However, by itself a fossil has little meaning unless it is placed within some context.
This is a relative measure designed to approximate U. grade school levels, developed by Read Theory to calibrate our reading comprehension lessons in terms of their overall difficulty.
Sometimes they howl to warn other wolves to stay away..
As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.
A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.
Lexile measures provide a clear way to monitor progress toward college and career readiness.