Exam 8: Fossils and Their Place in Time and Nature

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A layer of stratigraphy in one location overwhelmingly represents one species, while the same species is discovered in a similar stratigraphic layer fifty miles away. What method is used to provide an estimate of age for this layer and this species?

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The time it takes for 50% of an unstable isotope to decay to a stable form is called the:

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Some of the best information on climate history is based on the study of:

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Coinciding with the appearance of early hominins about 5-10 mya, the climate was:

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In the 1600s Nicolaus Steno proposed :

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Which of the following is NOT an ideal environment for fossilization?

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Taphonomy is the study of:

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