evolution of populations 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400...
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Evolution of Populations
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ANCIENT LIFE FORMING FOSSILS
GEOLOGIC TIME SCALE
EARTH FORMATION
GRAB BAG
Final Jeopardy
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©Norman Herr, 2003
QuestionAnswer
Ancient Life-100
• ANSWER: Scientists who study fossils.• QUESTION: What are paleontologists?
QuestionAnswer
Ancient Life-200
• ANSWER: Provides evidence about the history of life on earth
• QUESTION: What is the fossil record?
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Ancient Life-300
• ANSWER: Over 99% of these have become extinct.
• QUESTION: What are species living on the earth?
QuestionAnswer
Ancient Life-400
• ANSWER: They show how different groups of organisms have changed over time.
• QUESTION: What is the fossil record?
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Ancient Life-500
• ANSWER: Over billions of years, ancient unicellular organisms have given rise to these modern unicellular organisms that do not have their DNA within a nucleus.
• QUESTION: What are modern bacteria?
QuestionAnswer
• ANSWER: Most fossils form in this type of rock.
• QUESTION: What is sedimentary rock?
Forming Fossils-100
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Forming Fossils -200
• ANSWER: Dead organisms are buried by this prior to becoming a fossil.
• QUESTION: What is sediment?
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Forming Fossils -300
• ANSWER: The length of time required for half the radioactive atoms in a sample to decay, or become another isotope of the element.
• QUESTION: What is radioactive dating?
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Forming Fossils -400
• ANSWER: A species that is easily recognized, existed for a short period, and had wide distribution.
• QUESTION: What is an index fossil?
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Forming Fossils -500
• ANSWER: The age of a fossil is determined by comparing its placement to placement with fossils in other layers of rock.
• QUESTION: What is relative dating?
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Geologic Time Scale-100
• ANSWER: Paleontologist use divisions of this to represent evolutionary time.
• QUESTION: What is the geologic time scale?
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Geologic Time Scale -200
• ANSWER: After Precambrian Time, these are the basic general divisions of the geologic time scale.
• QUESTION: What are eras and periods?
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Geologic Time Scale -300
• ANSWER: The three eras between the Precambrian and the present.
• QUESTION: What are the Paleozoic, Mesozoic, and Cenozoic Eras?
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Geologic Time Scale -400
• ANSWER: The era in which dinosaurs lived and in which mammals began to evolve.
• QUESTION: What is the Mesozoic Era?
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Geologic Time Scale -500
• ANSWER: The era in which mammals became very common.
• QUESTION: What is the Cenozoic (or present) Era?
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Earth Formation-100
• ANSWER: Hydrogen cyanide, carbon dioxide, carbon monoxide, nitrogen, hydrogen sulfide, and water.
• QUESTION: What is earth’s early atmosphere?
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Earth Formation -200
• ANSWER: 3.8 billion years ago, oceans covered much of the earth, and this was first deposited in the water.
• QUESTION: What is sedimentary rock?
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Earth Formation -300
• ANSWER: They performed experiments to determine how organic molecules first formed.
• QUESTION: Who are Urey and Miller?
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Earth Formation -400
• ANSWER: Large organic molecules form tiny bubbles which have some characteristics of living organisms.
• QUESTION: What are proteinoid microspheres?
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Earth Formation -500
• ANSWER: Some of these molecules can grow and duplicate themselves, which surprised scientists. Scientists believe this came before DNA.
• QUESTION: What is RNA?
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Grab Bag-100
• ANSWER: Long stable periods of evolution, interrupted by brief periods of rapid change.
• QUESTION: What is punctuated equilibrium?
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Grab Bag -200
• ANSWER: A single species, through natural selection, evolves into different forms that live in different ways.
• QUESTION: What is adaptive radiation?
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Grab Bag -300
• ANSWER: Unrelated organisms evolve and begin to resemble one another.
• QUESTION: What is convergent evolution?
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Grab Bag -400
• ANSWER: Two species evolve in response to changes in each other over time.
• QUESTION: What is coevolution?
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Grab Bag 500
• ANSWER: The theory in which eukaryotic cells formed from symbiosis among several different prokaryotic organisms.
• QUESTION: What is the Endosymbiotic Theory?
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FINAL JEOPARDY
• ANSWER: Georges Cuvier
• QUESTION: Who was the main founder of both comparative anatomy and paleontology?