Bio 101: Evolution Questions and
Answers 2025
Evolution:A-ACORRECTAANSWERSA-
GeneticAchangeAinAaApopulationAorAspeciesAoverAtime.
WhatAisAtheAevolutionaryAunit?A-ACORRECTAANSWERSA-Populations.
GeneApool:A-ACORRECTAANSWERSA-AllAtheAallelesAofAaApopulation.
Population:A-ACORRECTAANSWERSA-
AllAmembersAofAaAspeciesAthatAliveAinAaAdefinedAarea.
WhatAdidADarwinAobserveAtoAhelpAcreateAhisAtheoryAofAevolutionAandAnaturalAselection?A-
ACORRECTAANSWERSA---TheAdiversityAofAlife
--PatternsAofAsimilarity
--OrganismsAsuitedAtoAtheirAenvironment
WhatAisAtheAevidenceAweAhaveAtoAsupportAevolution?A-ACORRECTAANSWERSA-
TheAfossilArecords,ABio-
geography,AcomparativeAanatomy,AcomparativeAembryology,AandAmolecularAbiology.
HowAdoAtheAfossilArecordsAsupportAevolution?A-ACORRECTAANSWERSA-
TransitionalAfossilsAshowAsimilaritiesAinAorganismsAnewAandAoldAconnectingAthemAtoAtheAs
ameAancestors.
HowAdoesAbio-geographyAsupportAevolution?A-ACORRECTAANSWERSA-Bio-
geographyAshowsAusAtheAgeographicAdistributionAofAspeciesAmakingAitApossibleAtoArelateAs
peciesAtoAaAcommonAancestorAbasedAonAlocation.
HowAdoesAcomparativeAanatomyAsupportAevolution?A-ACORRECTAANSWERSA---
BiologistsAuseAvestigialAstructuresAtoAconnectAspeciesAtoAtheirAancestors.A
--FindingAspeciesAwithAsimilarAanatomyAhelpsAconnectAthemAwithAeachAother.
VestigialAstructure:A-ACORRECTAANSWERSA-
RemnantsAofAfeaturesAthatAservedAimportantAfunctionsAtoAanAorganismsAancestorsAbutAha
veAnearlyAdisappearedAdueAtoAevolutionaryAchangeAwhenAtheAorganismsAnoAlongerArequir
esAthatAfunctionAforAsurvival.A(ex:AwhalesAhaveAbonesAnearAtheAendAofAtheirAbodyAresembli
ngAthoseAofAaAhipAboneAsuggestingAtheyAoriginatedAfromAaAfourAleggedAlandAanimal.)
HowAdoesAcomparativeAembryologyAsupportAevolution?A-ACORRECTAANSWERSA-
SimilarAembryoAshapesAsuggestAweAallAstartedAoffAtheAsame.
HowAdoesAmolecularAbiologyAsupportAevolution?A-ACORRECTAANSWERSA-
ShowsAtheAsimilarityAinADNAAsequencesAbetweenAdifferentAspeciesAuseAtoAproveArelations
.
NaturalAselection:A-ACORRECTAANSWERSA-
WithinAaApopulationAsomeAindividualsAmayAhaveAvariationsAthatAgiveAthemAanAadvantageA
atAsurvival,AtheseAwillAbeAtheAindividualsAwithAtheAbestAchanceAofAsurvivalAandAwillAlikelyApa
ssAtheseAvariationsAtoAtheirAoffspringAandAsoAon.
Micro-evolution:A-ACORRECTAANSWERSA---EvolutionAatAitsAsmallestAscale.A
--ChangesAinAalleleAfrequencyAinAaApopulation.
Macro-evolutionA-ACORRECTAANSWERSA-ChangesAgoingAaboveAtheAlevelAofAspecies.
Answers 2025
Evolution:A-ACORRECTAANSWERSA-
GeneticAchangeAinAaApopulationAorAspeciesAoverAtime.
WhatAisAtheAevolutionaryAunit?A-ACORRECTAANSWERSA-Populations.
GeneApool:A-ACORRECTAANSWERSA-AllAtheAallelesAofAaApopulation.
Population:A-ACORRECTAANSWERSA-
AllAmembersAofAaAspeciesAthatAliveAinAaAdefinedAarea.
WhatAdidADarwinAobserveAtoAhelpAcreateAhisAtheoryAofAevolutionAandAnaturalAselection?A-
ACORRECTAANSWERSA---TheAdiversityAofAlife
--PatternsAofAsimilarity
--OrganismsAsuitedAtoAtheirAenvironment
WhatAisAtheAevidenceAweAhaveAtoAsupportAevolution?A-ACORRECTAANSWERSA-
TheAfossilArecords,ABio-
geography,AcomparativeAanatomy,AcomparativeAembryology,AandAmolecularAbiology.
HowAdoAtheAfossilArecordsAsupportAevolution?A-ACORRECTAANSWERSA-
TransitionalAfossilsAshowAsimilaritiesAinAorganismsAnewAandAoldAconnectingAthemAtoAtheAs
ameAancestors.
HowAdoesAbio-geographyAsupportAevolution?A-ACORRECTAANSWERSA-Bio-
geographyAshowsAusAtheAgeographicAdistributionAofAspeciesAmakingAitApossibleAtoArelateAs
peciesAtoAaAcommonAancestorAbasedAonAlocation.
HowAdoesAcomparativeAanatomyAsupportAevolution?A-ACORRECTAANSWERSA---
BiologistsAuseAvestigialAstructuresAtoAconnectAspeciesAtoAtheirAancestors.A
--FindingAspeciesAwithAsimilarAanatomyAhelpsAconnectAthemAwithAeachAother.
VestigialAstructure:A-ACORRECTAANSWERSA-
RemnantsAofAfeaturesAthatAservedAimportantAfunctionsAtoAanAorganismsAancestorsAbutAha
veAnearlyAdisappearedAdueAtoAevolutionaryAchangeAwhenAtheAorganismsAnoAlongerArequir
esAthatAfunctionAforAsurvival.A(ex:AwhalesAhaveAbonesAnearAtheAendAofAtheirAbodyAresembli
ngAthoseAofAaAhipAboneAsuggestingAtheyAoriginatedAfromAaAfourAleggedAlandAanimal.)
HowAdoesAcomparativeAembryologyAsupportAevolution?A-ACORRECTAANSWERSA-
SimilarAembryoAshapesAsuggestAweAallAstartedAoffAtheAsame.
HowAdoesAmolecularAbiologyAsupportAevolution?A-ACORRECTAANSWERSA-
ShowsAtheAsimilarityAinADNAAsequencesAbetweenAdifferentAspeciesAuseAtoAproveArelations
.
NaturalAselection:A-ACORRECTAANSWERSA-
WithinAaApopulationAsomeAindividualsAmayAhaveAvariationsAthatAgiveAthemAanAadvantageA
atAsurvival,AtheseAwillAbeAtheAindividualsAwithAtheAbestAchanceAofAsurvivalAandAwillAlikelyApa
ssAtheseAvariationsAtoAtheirAoffspringAandAsoAon.
Micro-evolution:A-ACORRECTAANSWERSA---EvolutionAatAitsAsmallestAscale.A
--ChangesAinAalleleAfrequencyAinAaApopulation.
Macro-evolutionA-ACORRECTAANSWERSA-ChangesAgoingAaboveAtheAlevelAofAspecies.