Changes Over Time Part 2: Question Preview (ID: 22855)


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Compare and contrast the theories of gradualism and punctuated equilibria (equilibrium).
a) Both are theories of movement. Gradualism says moved slowly. Punctuated Equilibria says rapid movement then none. b) Both are theories of evolution. Punctuated Equilibria says happened slowly. Gradualism says rapid change then no change. c) Both are theories of movement.Punctuated Equilibria says moved slowly. Gradualism says rapid movement then none. d) Both are theories of evolution. Gradualism says happened slowly. Punctuated Equilibria says rapid change then no change.
Scientists find a fossil in a rock layer near the bottom of a canyon. They find a fossil in a rock layer near the top of the canyon. Which fossil is probably older? Explain how you know, and identify the kind of dating you are using.
a) Using relative dating, scientists infer the fossil near the bottom is older b/c the lower the layer, the older it is. b) Using relative dating, scientists infer the fossil near the bottom is younger because the lower the layer, the younger it is c) Using radioactive dating, scientists infer the fossil near the bottom is older b/c the lower the layer, the older it is. d) Using radioactive dating, scientists infer the fossil near the bottom is younger b/c the lower the layer, the younger it is
A continent pulls apart, and the parts become separated by an ocean. How could this event affect the species of organisms that populated the original continent?
a) Geologic unity occurred, the species adapted to the new conditions, and evolved so much they became different species. b) Geologic isolation occurred, the species adapted to the new conditions, and evolved so much they became different species. c) Geologic unity occurred, the species remained the same. d) Geologic isolation occurred, the species remained the same.
What do these similarities provide evidence of? What can you infer about turtles, alligators, and birds from these similarities?
a) The structures provide evidence of evolution. Therefore, turtles, alligators, and birds do have a common ancestor. b) The structures provide evidence of evolution. Therefore, turtles, alligators, and birds all evolve from different ancestors. c) The structures provide evidence of evolution. Therefore, turtles, alligators, and birds do not have a common ancestor. d) The structures provide evidence of evolution. Therefore, turtles, alligators, and birds have nothing in common.
Identify one way in which the bones of a turtle, alligator and bird's extremities are similar.
a) There is two long heavy bones connected to two long slender bones, which is connected to shorter smaller bones. b) There is one long heavy bone connected to three long slender bones, which is connected to shorter smaller bones. c) There is one long heavy bone connected to two long slender bones, which is connected to even longer smaller bones. d) There is one long heavy bone connected to two long slender bones, which is connected to shorter smaller bones.
Describe the process in which most fossils form.
a) When the organism dies and is eaten leaving only bones. b) When the organism dies and becomes buried in sediment, which hardens to become sedimentary rock with the fossil inside it. c) When the organism dies and becomes buried in sediment. Then it turns into igneous rock. d) When the organism dies and is buried in a coffin.
What do scientists use to determine evolutionary relationships among organisms?
a) Scientist use RNA, protein structure, fossils, late development, and body structure to determine evolutionary relationships. b) Scientist use DNA, protein structure, fossils, late development, and body structure to determine evolutionary relationships. c) Scientist use DNA, protein structure, fossils, early development, and body structure to determine evolutionary relationships. d) Scientist use DNA, protein structure, fossils, early development, and habitats to determine evolutionary relationships.
What is the chart with Precambrian, Paleozoic, Mesozoic, and Cenozoic eras called?
a) Earth's History. b) Geologic Time Scale. c) Fossil Scale. d) Record Scale.
How does the fossil record apply to the answer to number 1?
a) Scientist used the fossil record to create Earth's History. b) Scientist used the fossil record to create the Geologic Time Scale. c) Scientist used the fossil record to create the Fossil Scale. d) Scientist used the fossil record to create the Record Scale.
What factors affect natural selection?
a) over production, genetic engineering, and variation. b) genetic engineering, competition, and variation. c) genetic engineering, competition, and variation. d) over production, competition, and variation.
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