Identify Evidence for Evolution - Biology
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Which dating method uses radioactive decay to assign absolute ages to rocks and fossils?
Which dating method uses radioactive decay to assign absolute ages to rocks and fossils?
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Radiometric dating. Uses decay rates to determine precise geological ages.
Radiometric dating. Uses decay rates to determine precise geological ages.
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Identify the evidence type: a bacterial population evolves resistance after antibiotic exposure.
Identify the evidence type: a bacterial population evolves resistance after antibiotic exposure.
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Direct observation of evolution by natural selection. Real-time observation of evolutionary change in response to selection.
Direct observation of evolution by natural selection. Real-time observation of evolutionary change in response to selection.
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Which geological process helps explain related species on now-separated continents?
Which geological process helps explain related species on now-separated continents?
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Plate tectonics (continental drift). Continental movement explains current species distribution patterns.
Plate tectonics (continental drift). Continental movement explains current species distribution patterns.
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What is an example of observed evolution commonly tested in insects?
What is an example of observed evolution commonly tested in insects?
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Pesticide resistance evolution. Selection pressure driving rapid evolutionary adaptation.
Pesticide resistance evolution. Selection pressure driving rapid evolutionary adaptation.
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Which evidence type uses selective breeding to show that populations can change over generations?
Which evidence type uses selective breeding to show that populations can change over generations?
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Artificial selection. Demonstrates heritable variation can produce dramatic changes.
Artificial selection. Demonstrates heritable variation can produce dramatic changes.
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What is a homologous structure?
What is a homologous structure?
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A shared structure from common ancestry with possible different function. Same bone pattern indicates inheritance from common ancestor.
A shared structure from common ancestry with possible different function. Same bone pattern indicates inheritance from common ancestor.
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Which evolutionary pattern is supported by analogous structures in unrelated lineages?
Which evolutionary pattern is supported by analogous structures in unrelated lineages?
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Convergent evolution. Independent evolution of similar traits in different lineages.
Convergent evolution. Independent evolution of similar traits in different lineages.
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What does high DNA sequence similarity between two species most directly indicate?
What does high DNA sequence similarity between two species most directly indicate?
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A more recent common ancestor. More similar sequences indicate more recent divergence.
A more recent common ancestor. More similar sequences indicate more recent divergence.
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Which molecular feature is a shared DNA insertion at the same genome location in two species?
Which molecular feature is a shared DNA insertion at the same genome location in two species?
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Shared pseudogene or shared retroviral insertion. Unlikely coincidence strongly supports common ancestry.
Shared pseudogene or shared retroviral insertion. Unlikely coincidence strongly supports common ancestry.
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Which broad evidence category uses preserved remains or traces to infer evolutionary change?
Which broad evidence category uses preserved remains or traces to infer evolutionary change?
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The fossil record. Fossils document evolutionary changes through geological time.
The fossil record. Fossils document evolutionary changes through geological time.
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What is meant by a "line of evidence" for evolution in biology?
What is meant by a "line of evidence" for evolution in biology?
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An observation type that supports descent with modification. Provides observable data supporting the theory of common descent.
An observation type that supports descent with modification. Provides observable data supporting the theory of common descent.
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Which evolutionary pattern is supported when one ancestral species splits into many forms?
Which evolutionary pattern is supported when one ancestral species splits into many forms?
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Divergent evolution. Adaptive radiation from single ancestral species into multiple forms.
Divergent evolution. Adaptive radiation from single ancestral species into multiple forms.
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What is a vestigial structure?
What is a vestigial structure?
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A reduced remnant of a structure inherited from ancestors. Evolutionary remnant no longer serving its original function.
A reduced remnant of a structure inherited from ancestors. Evolutionary remnant no longer serving its original function.
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Which evidence category compares early developmental stages to infer ancestry?
Which evidence category compares early developmental stages to infer ancestry?
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Comparative embryology. Early development reflects evolutionary history and relationships.
Comparative embryology. Early development reflects evolutionary history and relationships.
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What is the key embryology observation that supports common ancestry among vertebrates?
What is the key embryology observation that supports common ancestry among vertebrates?
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Similar early developmental features across species. Shared developmental patterns indicate common evolutionary origin.
Similar early developmental features across species. Shared developmental patterns indicate common evolutionary origin.
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What is a pseudogene in the context of evolutionary evidence?
What is a pseudogene in the context of evolutionary evidence?
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A nonfunctional gene remnant inherited from ancestors. Molecular fossil providing evidence of evolutionary history.
A nonfunctional gene remnant inherited from ancestors. Molecular fossil providing evidence of evolutionary history.
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Which evidence category uses the geographic distribution of species to support evolution?
Which evidence category uses the geographic distribution of species to support evolution?
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Biogeography. Geographic patterns reflect evolutionary history and dispersal.
Biogeography. Geographic patterns reflect evolutionary history and dispersal.
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What biogeography pattern strongly supports evolution on islands?
What biogeography pattern strongly supports evolution on islands?
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Endemism: many species found only on that island group. Isolation promotes unique evolutionary adaptations and speciation.
Endemism: many species found only on that island group. Isolation promotes unique evolutionary adaptations and speciation.
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Which evidence category uses DNA or protein sequence similarity to infer relatedness?
Which evidence category uses DNA or protein sequence similarity to infer relatedness?
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Molecular (genetic) evidence. DNA/protein similarities quantify evolutionary relationships precisely.
Molecular (genetic) evidence. DNA/protein similarities quantify evolutionary relationships precisely.
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What is the principle that lower rock layers are generally older than higher layers?
What is the principle that lower rock layers are generally older than higher layers?
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Law of superposition. Foundation principle for determining relative ages in geology.
Law of superposition. Foundation principle for determining relative ages in geology.
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What is the term for fossils that show intermediate traits between major groups?
What is the term for fossils that show intermediate traits between major groups?
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Transitional fossils. Bridge species connecting ancestral and derived forms.
Transitional fossils. Bridge species connecting ancestral and derived forms.
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Which dating method uses radioactive decay to assign absolute ages to rocks and fossils?
Which dating method uses radioactive decay to assign absolute ages to rocks and fossils?
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Radiometric dating. Uses decay rates to determine precise geological ages.
Radiometric dating. Uses decay rates to determine precise geological ages.
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Which evidence type is shown by the ordered appearance of forms in older to younger rock layers?
Which evidence type is shown by the ordered appearance of forms in older to younger rock layers?
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Fossil succession in stratigraphy. Shows evolutionary progression from simple to complex forms over time.
Fossil succession in stratigraphy. Shows evolutionary progression from simple to complex forms over time.
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What is the term for the time required for half of a radioactive isotope to decay?
What is the term for the time required for half of a radioactive isotope to decay?
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Half-life. Constant rate measure used in radiometric dating calculations.
Half-life. Constant rate measure used in radiometric dating calculations.
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Which evidence category compares body structures across species to infer relatedness?
Which evidence category compares body structures across species to infer relatedness?
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Comparative anatomy. Structural similarities reveal evolutionary relationships between species.
Comparative anatomy. Structural similarities reveal evolutionary relationships between species.
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Which evidence category is direct observation of evolutionary change in real time?
Which evidence category is direct observation of evolutionary change in real time?
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Observed evolution in contemporary populations. Real-time documentation of evolutionary processes in action.
Observed evolution in contemporary populations. Real-time documentation of evolutionary processes in action.
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Which term describes evolution driven by differential survival and reproduction in nature?
Which term describes evolution driven by differential survival and reproduction in nature?
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Natural selection. Environmental pressures drive adaptive evolutionary change.
Natural selection. Environmental pressures drive adaptive evolutionary change.
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What is an example of observed evolution commonly tested in bacteria?
What is an example of observed evolution commonly tested in bacteria?
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Antibiotic resistance evolution. Natural selection producing rapid evolutionary change.
Antibiotic resistance evolution. Natural selection producing rapid evolutionary change.
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Which evidence type is indicated when island species resemble the nearest mainland species?
Which evidence type is indicated when island species resemble the nearest mainland species?
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Biogeography supporting colonization and divergence. Geographic proximity indicates source of colonizing ancestors.
Biogeography supporting colonization and divergence. Geographic proximity indicates source of colonizing ancestors.
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What is the term for rapid diversification from a common ancestor into many niches?
What is the term for rapid diversification from a common ancestor into many niches?
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Adaptive radiation. Quick diversification when new environments become available.
Adaptive radiation. Quick diversification when new environments become available.
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