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how can measuring the carbon-14 activity of a sample of an animal bone allow one to...

how can measuring the carbon-14 activity of a sample of an animal bone allow one to determine how long ago the animal was alive

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genius_generous answered 10 months ago
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The amount of meat in prehistoric diets can be determined by measuring the ratio of the isotopes nitrogen-15 to nitrogen-14 in bone from human remains.
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Dual-energy X-ray absorptiometry (DXA) is a technique for measuring bone health. One of the most common...
Dual-energy X-ray absorptiometry (DXA) is a technique for measuring bone health. One of the most common measures is total body bone mineral content (TBBMC). A highly skilled operator is required to take the measurements. Recently, a new DXA machine was purchased by a research lab, and two operators were trained to take the measurements. TBBMC for eight subjects was measured by both operators. The units are grams (g). A comparison of the means for the two operators provides a check...
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