Chapter 16 - Evidence of Evolution

?Multiple Choice1.??An asteroid that impacted Earth about 66 million years ago is believed to be responsible for ____.?a.??the creation of life on Earth?b.??a global catastrophe that may have wiped out the dinosaurs?c.??the splitting of one land mass into continents?d.??a mass extinction of land plants?e.??the evolution of Earth’s oceansANSWER:??bDIFFICULTY:??Blooms: AnalyzeREFERENCES:??16.1 Reflections of a Distant PastLEARNING?OBJECTIVES:??UDOL.STES.16.16.1 - Examine the role played by asteroids in understanding the time scale of natural events.2.??Barringer Crater in Arizona was formed when a 300,000-ton asteroid slammed into Earth 50,000 years ago. Which statement accurately depicts this event??a.??The asteroid hit so early that it had little influence on the history of life.?b.??The asteroid produced about 150 times the energy of the bomb that hit Hiroshima.?c.??The impact of the asteroid resulted in a minor crater.?d.??The cause of the crater has been determined by examining fossils found at the site.?e.??The impact of the asteroid released only minor amounts of energy.ANSWER:??bDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.1 Reflections of a Distant PastLEARNING?OBJECTIVES:??UDOL.STES.16.16.1 - Examine the role played by asteroids in understanding the time scale of natural events.3.?Scientists began to question the perfection of the “great chain of being” partially because of their studies in ____.??a.??radiometric dating?b.??uniformity?c.??meteorology?d.??astrobiology?e.??comparative morphologyANSWER:??eDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.4.??The study of the distribution of animals and plants around the world is ____.?a.??diversity?b.??biogeography?c.??ecology?d.??natural history?e.??environmentalismANSWER:??bDIFFICULTY:??Blooms: RememberREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.5.?Most fossils ____.??a.??are found in sedimentary layers of rock?b.??form without water?c.??contain remnants of soft body parts?d.??show evidence of extinct species?e.??are impervious to erosionANSWER:??aDIFFICULTY:??Blooms: RememberREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.6.?The oldest fossils ____.??a.??demonstrate the widest distribution?b.??represent the most highly evolved organisms?c.??are buried deeper in the ground than newer forms?d.??are found in Africa?e.??are primitive marine vertebratesANSWER:??cDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.7.??The tailbone of humans is an example of a(n) ____.?a.??developing feature?b.??accidental feature?c.??vestigial feature?d.??great chain of being?e.??fossil structureANSWER:??cDIFFICULTY:??Blooms: ApplyREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.8.??Cuvier, an anatomist and paleontologist, proposed that ____.?a.??all present-day organisms have descended, with adaptations, from one--or possibly a few--original organisms?b.??Earth's history has been marked by several periods when destruction of populations was widespread and that, after each such period, the earth was repopulated?c.??evolutionary changes in organisms are caused by use and disuse?d.??although evolution is responsible for all the changes that happen to species, one center of creation resulted in the original members of each species?e.??geologic processes in Earth have not changed over billions of yearsANSWER:??bDIFFICULTY:??Blooms: AnalyzeREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.9.?No convincing fossil evidence exists for ____.??a.??evolution?b.??extinction?c.??Earth’s age?d.??catastrophism?e.??uniformitarianismANSWER:??dDIFFICULTY:??Blooms: UnderstandingREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.10.?Which scenario would be a modern example of Lamarckianism???a.??A strain of houseflies resistant to insecticides emerges.?b.??Squirrels separated by a river are found to be unable to interbreed.?c.??A son is born with a portion of his right index finger missing--the same portion that was severed from his father's hand in an accident.?d.??A species of lizards shows changes in diet and body shape after being moved to a nearby island.?e.??Snails are found to have thicker shells after the introduction of a predator.ANSWER:??cDIFFICULTY:??Blooms: ApplyREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.NOTES:??modified11.??Which statement is least consistent with the beliefs of Lamarck??a.?“Fluida” moves into areas of the body in need of change.?b.?Acquired characteristics are inherited.?c.?Giraffes' necks have become longer in response to stretching.?d.?Environmental pressures bring about changes in organisms.?e.??Changes in an individual are not passed to its offspring.ANSWER:??eDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.12.??Darwin’s exposure to Lyell gave him insight on the ____.?a.??existing evidence from fossils?b.??record of catastrophic changes that encouraged evolution?c.??soundness of Lamarck's theories?d.??enormous lengths of time required for geologic events?e.??arguments for creationismANSWER:??dDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.13.??Which theory was helpful to Darwin in the formulation of his theory of evolution??a.??catastrophism?b.??inheritance of acquired characteristics?c.??uniformitarianism?d.??continental drift?e.?special creationismANSWER:??cDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.14.??Glyptodonts are fossil forms that resemble ____.?a.??ostriches?b.??armadillos?c.??kangaroos?d.??turtles?e.??slothsANSWER:??bDIFFICULTY:??Blooms: RememberREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.15.??The most important evidence that Darwin used to develop his theory of natural selection came from ____.?a.??the Argentine pampas?b.??his boyhood neighborhood in England?c.??the Galápagos Islands?d.??Australia and New Zealand?e.??South AmericaANSWER:??cDIFFICULTY:??Blooms: RememberREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.16.??When the theory of evolution by natural selection was first presented in 1858, authorship was credited to both Charles Darwin and ____.?a.??Charles Lyell?b.??Alfred Wallace?c.??Georges Cuvier?d.??Jean-Baptiste Lamarck?e.??Thomas MalthusANSWER:??bDIFFICULTY:??Blooms: RememberREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.17.??Thomas Malthus proposed that ____.?a.?the food supply increases faster than the population??b.??the population increases faster than the food supply?c.??the food supply and population increase at the same rate?d.??artificial selection is the key to evolution?e.??natural selection is the key to evolutionANSWER:??bDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.18.??Which statement does not represent one of Darwin's observations??a.??All individuals have an equal chance to survive and reproduce.?b.??Changes in populations are gradual and take place over long periods of time.?c.??Members of the same species may exhibit considerable variation.?d.??Some characteristics are heritable and passed on to offspring.?e.??Some characteristics afford their possessor a better chance of survival.ANSWER:??aDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.19.??Natural selection results in changes in ____.?a.?individuals?b.??populations?c.??kingdoms?d.??phyla?e.??animals onlyANSWER:??bDIFFICULTY:??Blooms: ApplyREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.20.??Darwin's theory states, in part, that individuals with certain traits have an increased competitive edge. What is the source of these traits??a.??adaptation to stress?b.??development over a lifetime?c.??inheritance?d.??mutation after birth?e.??better living conditionsANSWER:??cDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.21.??The operation of natural selection depends upon the fact that ____.?a.??the strong always survive, whereas the weak always die?b.??some individuals have a better chance to produce more offspring?c.??mutations are always harmful?d.??acquired characteristics are inherited?e.??reproduction of all members of a species follows the same pathANSWER:??bDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.22.??Which of the following evolve??a.??populations only?b.??genera only?c.??kingdoms only?d.??both populations and genera?e.??populations, genera, and kingdomsANSWER:??aDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.23.??The process of fossilization typically begins when an organism or traces of it ____.?a.??settle on the seafloor?b.??are pressurized under the weight of sediment?c.??crystallize into minerals?d.??are saturated with groundwater?e.??become covered with sediments, mud, or ashANSWER:??eDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.5 Fossils: Evidence of Ancient LifeLEARNING?OBJECTIVES:??UDOL.STES.16.16.5 - Examine the formation of fossils and their importance in studying the history of the natural world.24.??____ are examples of trace fossils.?a.??Skeletons?b.??Shells?c.??Seeds?d.??Footprints?e.??LeavesANSWER:??dDIFFICULTY:??Blooms: ApplyREFERENCES:??16.5 Fossils: Evidence of Ancient LifeLEARNING?OBJECTIVES:??UDOL.STES.16.16.5 - Examine the formation of fossils and their importance in studying the history of the natural world.25.??Which habitat is most likely to be rich in fossils??a.??eroding hillsides?b.??deserts?c.?polar ice caps?d.??shallow seas?e.??rocky plateauANSWER:??dDIFFICULTY:??Blooms: RememberREFERENCES:??16.5 Fossils: Evidence of Ancient LifeLEARNING?OBJECTIVES:??UDOL.STES.16.16.5 - Examine the formation of fossils and their importance in studying the history of the natural world.26.??Radiometric dating ____.?a.??is based on the premise that each isotope decays at a constant rate?b.??is unpredictable because of changes in temperature and pressure?c.??can be used to date sedimentary rock, but not fossils?d.??has a substantial error factor?e.??can only be used for dating animal fossilsANSWER:??aDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.6 Filling in the Pieces of the PuzzleLEARNING?OBJECTIVES:??UDOL.STES.16.16.6 - Examine the role of radiometric dating in determining the age of fossil records.27.??The time it takes for half of a radioisotope's atoms to decay ____.?a.??cannot be calculated?b.??is used to construct the geologic time scale?c.??is its half-life?d.??is the same for uranium 238 and carbon 14?e.??is highly variableANSWER:??cDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.6 Filling in the Pieces of the PuzzleLEARNING?OBJECTIVES:??UDOL.STES.16.16.6 - Examine the role of radiometric dating in determining the age of fossil records.

?Fig. 16.1228.??The accompanying figure illustrates that after two half-lives, ____ percent of the parent radioisotope has decayed.?a.??100?b.??75?c.??50?d.??25?e.??0ANSWER:??bDIFFICULTY:??Blooms: ApplyREFERENCES:??16.6 Filling in the Pieces of the PuzzlePREFACE?NAME:??Fig. 16.12LEARNING?OBJECTIVES:??UDOL.STES.16.16.6 - Examine the role of radiometric dating in determining the age of fossil records.29.??Plate tectonic theory is based on ____.?a.??a model in which cool material in the earth's crust rises and spreads laterally beneath the crustal plates?b.??the idea that Earth's crust is fragmented into rigid crusts that are sinking slowly beneath crustal plates?c.??the idea that sedimentary rock formation causes continents to drift apart slowly on their crustal plates?d.??observations that the sea floor is slowly spreading away from oceanic ridges, driven by plumes of magma welling up from Earth's interior?e.??evidence that severe disturbances in Earth’s crust shaped the continents in a single large eventANSWER:??dDIFFICULTY:??Blooms: RememberREFERENCES:??16.7 Drifting Continents, Changing SeasLEARNING?OBJECTIVES:??UDOL.STES.16.16.7 - Discuss the characteristic features of the plate tectonics theory.30.??The idea that geologic processes have formed Earth's surface by repeating the same actions over and over is known as ____.?a.??the theory of catastrophism?b.??plate tectonics?c.??continental drift?d.??the theory of uniformity?e.??the theory of relativityANSWER:??dDIFFICULTY:??Blooms: RememberREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.31.??The supercontinent Pangea ____.?a.??existed over 500 million years ago?b.??broke apart to form Gondwana?c.??formed about 270 million years ago?d.??was located only in the southern hemisphere?e.??formed only North and South AmericaANSWER:??cDIFFICULTY:??Blooms: RememberREFERENCES:??16.7 Drifting Continents, Changing SeasLEARNING?OBJECTIVES:??UDOL.STES.16.16.7 - Discuss the characteristic features of the plate tectonics theory.32.?Which body of evidence is least supportive of plate tectonics theory???a.??the worldwide fossil record?b.??the global distribution of existing species?c.??the sea-floor spreading?d.??the shape of the continents?e.??the size of the oceansANSWER:??eDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.7 Drifting Continents, Changing SeasLEARNING?OBJECTIVES:??UDOL.STES.16.16.7 - Discuss the characteristic features of the plate tectonics theory.33.??The geologic time scale is often subdivided on the basis of ____.?a.??the appearance of different radioactive isotopes in different strata?b.??levels of background extinction?c.??periods of mass extinction?d.??the appearance of new species?e.??climate changeANSWER:??cDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.8 Putting Time into PerspectiveLEARNING?OBJECTIVES:??UDOL.STES.16.16.8 - Examine the major geological and biological events in Earth’s history.NOTES:??new34.??Which interval is classified as a “period” in the geologic time scale rather than an “era”??a.??Mesozoic?b.??Proterozoic?c.??Carboniferous?d.??Cenozoic?e.??PaleozoicANSWER:??cDIFFICULTY:??Blooms: RememberREFERENCES:??16.8 Putting Time into PerspectiveLEARNING?OBJECTIVES:??UDOL.STES.16.16.8 - Examine the major geological and biological events in Earth’s history.35.??Which statement about the geologic time scale is false??a.??Mammals originated early in the Mesozoic era.?b.??Radiations of marine invertebrates took place in the Mesozoic era.?c.??Mass extinction of the dinosaurs occurred about 65 million years ago.?d.??Reptiles originated during the Paleozoic era.?e.??Eukaryotes originated during the Proterozoic eon.ANSWER:??bDIFFICULTY:??Blooms: ApplyREFERENCES:??16.8 Putting Time into PerspectiveLEARNING?OBJECTIVES:??UDOL.STES.16.16.8 - Examine the major geological and biological events in Earth’s history.36.??The Cretaceous is the most recent period of the ____ era.?a.??Paleozoic?b.??Cenozoic?c.??Mesozoic?d.??Proterozoic?e.??ArchaeanANSWER:??cDIFFICULTY:??Blooms: RememberREFERENCES:??16.8 Putting Time into PerspectiveLEARNING?OBJECTIVES:??UDOL.STES.16.16.8 - Examine the major geological and biological events in Earth’s history.37.??The large, ancient land mass that contained all the continents is known as ____.?a.??Laurasia?b.??Pangea?c.??Gondwana?d.??Atlantis?e.??EuropaANSWER:??bDIFFICULTY:??Blooms: RememberREFERENCES:??16.7 Drifting Continents, Changing SeasLEARNING?OBJECTIVES:??UDOL.STES.16.16.7 - Discuss the characteristic features of the plate tectonics theory.38.??Fossils from the ____ would be the oldest in the Grand Canyon.?a.??hermit shale?b.??redwall limestone?c.??temple butte formation?d.??bright angel shale?e.??vishnu basement rocksANSWER:??eDIFFICULTY:??Blooms: ApplyREFERENCES:??16.8 Putting Time into PerspectiveLEARNING?OBJECTIVES:??UDOL.STES.16.16.8 - Examine the major geological and biological events in Earth’s history.39.??Which period is the most recent??a.??Triassic?b.??Silurian?c.??Devonian?d.??Permian?e.??CambrianANSWER:??aDIFFICULTY:??Blooms: RememberREFERENCES:??16.8 Putting Time into PerspectiveLEARNING?OBJECTIVES:??UDOL.STES.16.16.8 - Examine the major geological and biological events in Earth’s history.MatchingSelect the most appropriate choice for each person.?a.??wrote Principles of Geologyb.??developed the theory of catastrophismc.??believed that giraffes have long necks because their short-necked ancestors stretched their necks and passed this change onto their offspringd.??was a naturalist who sailed on the Beagle and studied finchese.??wrote an essay relating population size to competition for limited resourcesf.??natural historian and author; formed early ideas of the great chain of beingDIFFICULTY:??Blooms: RememberREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.40.??AristotleANSWER:??f41.??CuvierANSWER:??b42.?Darwin?ANSWER:??d43.??LamarckANSWER:??c44.?Lyell?ANSWER:??a45.?Malthus?ANSWER:??eCompletion46.??____________________ are evidence of life in the distant past.ANSWER:???FossilsDIFFICULTY:??Blooms: RememberREFERENCES:??16.5 Fossils: Evidence of Ancient LifeLEARNING?OBJECTIVES:??UDOL.STES.16.16.5 - Examine the formation of fossils and their importance in studying the history of the natural world.47.??19th-century naturalists tried to reconcile traditional beliefs with physical evidence of ____________________.ANSWER:???evolutionDIFFICULTY:??Blooms: RememberREFERENCES:??16.2 Early Beliefs, Confounding DiscoveriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.2 - Examine how naturalists of the nineteenth century influenced theories about the natural world.48.??____________________ that impart greater ____________________ to an individual become more common in a population over generations, compared with less competitive forms.ANSWER:???Adaptive traits, fitnessDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.49.??Differential survival and reproduction of individuals of a population that vary in the details of shared traits is called ____________________.ANSWER:???natural selectionDIFFICULTY:??Blooms: RememberREFERENCES:??16.4 Darwin, Wallace, and Natural SelectionLEARNING?OBJECTIVES:??UDOL.STES.16.16.4 - Explain the major observations of the natural world by researchers that influenced Darwin and his theory of natural selection.50.??The characteristic ____________________ of a radioisotope allows us to determine the age of rocks and fossils using a technique called ____________________.ANSWER:???half-life, radiometric datingDIFFICULTY:??Blooms: UnderstandREFERENCES:??16.6 Filling in the Pieces of the PuzzleLEARNING?OBJECTIVES:??UDOL.STES.16.16.6 - Examine the role of radiometric dating in determining the age of fossil records.51.??Several times in Earth's history, land masses have converged as supercontinents. ____________________ and ____________________ are examples.ANSWER:???Gondwana, Pangea; Pangea, GondwanaDIFFICULTY:??Blooms: RememberREFERENCES:??16.7 Drifting Continents, Changing SeasLEARNING?OBJECTIVES:??UDOL.STES.16.16.7 - Discuss the characteristic features of the plate tectonics theory.Subjective Short Answer52.??Based on what we know today, what is the best explanation for why the emu, ostrich, and rhea are so similar despite being geographically separated?ANSWER:???The emu of Australia, the ostrich of Africa and the rhea of South America were at one time all on the same land mass, and thus had a common ancestor.? It was continental drift that was responsible for separating them.DIFFICULTY:??Blooms: ApplyREFERENCES:??16.7 Drifting Continents, Changing SeasLEARNING?OBJECTIVES:??UDOL.STES.16.16.7 - Discuss the characteristic features of the plate tectonics theory.53.??How old was the world thought to be when Darwin began his voyage? How old is it thought to be now?ANSWER:???When Darwin left, the world was thought to be about 6000 years old and that humans had essentially existed since the beginning.? Darwin’s contemporary Lyell suggested the Earth was millions of years old based on geological processes.? We now know the Earth to be closer to four and a half billion years old.DIFFICULTY:??Blooms: RememberREFERENCES:??16.3 A Flurry of New TheoriesLEARNING?OBJECTIVES:??UDOL.STES.16.16.3 - Examine the new theories proposed by researchers about the evolution of the natural world.54.??Which fossil would be the oldest in a given strata and why?ANSWER:???The fossil from the deepest strata would be oldest.? As newer materials deposit, the older fossils get buried successively deeper.DIFFICULTY:??Blooms: UnderstandREFERENCES:??16.5 Fossils: Evidence of Ancient LifeLEARNING?OBJECTIVES:??UDOL.STES.16.16.5 - Examine the formation of fossils and their importance in studying the history of the natural world.55.??Why are fossils older than 60 000 years hard to date using C14?ANSWER:???C14 has a half-life of just over 5000 years.? With each half-life, half of the C14?present goes through radioactive decay. By 60 000 years, the vast majority of the C14 is gone due to so many successive half-lives.? While theoretically some C14 remains, the amount would be insufficient to accurately date the fossil.DIFFICULTY:??Blooms: UnderstandREFERENCES:??16.6 Filling in the Pieces of the PuzzleLEARNING?OBJECTIVES:??UDOL.STES.16.16.6 - Examine the role of radiometric dating in determining the age of fossil records. ................
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