Biol 110 Final Study Guide With Complete Solutions
Which of the following is the best use of dendrochronology? - To determine climate patterns in the last 5000 years.
Radiometric carbon dating is a type of ________________ dating. During the radioactive decay of C14, it decays into ______________. - absolute / N14
The Meadowcroft Rock Shelter near Avella, Pennsylvania is an early Native American archeological site from which many artifacts have been recovered. An archaeologist uses Carbon-14 dating to examine an elk bone found at that site. The half-life of C14 is 5730 years. She discovers that the bone dates to about 17,100 years before the present. The bone now contains 2 mg of C14. Approximately how many milligrams did it contain when the elk died? - 16 mg
Uranium-238 decays to Lead-206 with a half-life of 4.5 billion years. You are using this radiometric clock to date a moon rock. The moon formed at approximately the same time as the earth but because there is no plate tectonic activity, moon rocks can be found that are the age of the earth. If this moon rock is the same age as the earth, you would expect to see _____________ of the original amount of uranium remaining in this moon rock. - 50%
Natural Selection is ________________ - the process by which a population becomes better adapted to its' environment over time
The Evolution Canyons are comprised of two mountain slopes - the "African" slope and the "European slope" (see the image). Which of the following statements is a reasonable hypothesis about the mice living on these slopes? - Mice living on the "African" slope are hypothesized to have lighter coat color than the mice living on the "European" slope.
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