Biology 123 exam 1 practice test questions and answers correct and verified 100%

Biology 123 exam 1 practice test question
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s and answers correct and verified 100%
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Sometrcurrenttrspeciestrsharetronetrortrmoretrtraits.trThesetrspeciestrinheritedtrthesetrtraitstrfromtratrcommontra
ncestortrtheytrshare.trThetrsharedtrtraitstrinheritedtrfromtratrcommontrancestortrare:

A)trevolution

B)trallelestr

C)trhomologies

D)trAlltroftrthetrabovetr-trcorrecttranswers-C)trhomologies

CharlestrDarwintrdescribedtrthetrchangetrintrtraitstrthattroccurstrintratrpopulationtrovertrgenerationstrastr"Descen
ttrwithtrmodification"tras:

A)trTranscription

B)trsplicing

C)trevolutiontr

D)trtranslationtr-trcorrecttranswers-C)trevolution

CharlestrDarwintrdescribedtrevolutiontrastr"Descenttrwithtrmodification"trbecausetrthe:

A)trtraitstrexpressedtrbytrthetrdescentstroftrantrancestraltrpopulationtraretridenticaltrtotrthosetroftrthetrancestraltrp
opulation

B)trtraitstrexpressedtrbytrthetrdescentstroftrantrancestraltrpopulationtrdiffertrfromtrthosetroftrthetrancestraltrpopul
ationtr-trcorrecttranswers-
B)trtraitstrexpressedtrbytrthetrdescentstroftrantrancestraltrpopulationtrdiffertrfromtrthosetroftrthetrancestraltrpopul
ation

CharlestrDarwintrdescribedtrthetrbiologicaltrchangetrthattroccurstrintrspeciestrovertrgenerationstrastr"descenttrwi
thtrmodification".trThesetrchangestroccurtrbecausetrtheytrare-

A)tradaptationstrthattrincreasetrthetrabilitytrtotrreproducetrintrthetrcurrenttrenvironmenttr

B)tradaptationstrthattrdecreasetrthetrabilitytrtotrreproducetrintrthetrcurrenttrenvironmenttr-trcorrecttranswers-
A)tradaptationstrthattrincreasetrthetrabilitytrtotrreproducetrintrthetrcurrenttrenvironment

-adaptation:tratrtraittrthattrincreasetrthetrabilitytrtotrreproducetrintritstrcurrenttrenvironment.

Thetrshelltroftralltrseventrspeciestroftratrseatrturtletristrconsideredtratrhomology.trThistristrbecausetrthesetrseatrturtl
estrsharedtratrcommontrancestortrthattrhadtra:

, A)trFur

B)trTeeth

C)trFingers

D)trShelltr-trcorrecttranswers-D)trshell

Whichtrhypothesistraccountstrfortrthetridenticaltrtraitstrthattralltrthetrelephant-liketrspeciestrshare?

A)trthesetrtraitstrevolvedtrindependentlytrintreachtrspeciestrfossiltrrecord

B)trthetrcommontrancestortroftralltrthesetrspeciestrhadtrthesetrtraits

C)trTraitstraretrnottrinheritedtrcharacteristicstr-trcorrecttranswers-
B)trthetrcommontrancestortroftralltrthesetrspeciestrhadtrthesetrtraits

Whichtrlinetroftrevidencetrshowstrthattrbiologicaltrchangetrintrpopulationstrhastroccurredtrovertrgenerations?

A)trthetrfossiltrrecord

B)trthetrsignificanttrchangestrintrphenotypetroftrdomesticatedtranimaltrandtrcrops

C)trDrugtrresistancetrintrmanytrpathogentrpopulationstr

D)trAlltroftrthetrabovetr-trcorrecttranswers-D)trAlltroftrthetrabove

ThetrprocesstrbytrwhichtrthetrlivingtrworldtrhastrbeentrdevelopingtrsincetrlifetrappearedtrontrEarthtristrknowntras:

A)trEvolutiontr

B)trallele

C)trGenotype

D)trphenotypetr-trcorrecttranswers-A)trEvolution

Thetrchangetrintrthetrfrequencytroftrthetrallelestrintratrpopulationtrovertrgenerationstristrknowntras:

A)trEvolution

B)trallele

C)trgenotype

D)trPhenotypetr-trcorrecttranswers-A)trEvolution

Thetrincreasetrintrthetrfrequencytroftrthetrallelestrthattrcodetrfortrantibiotictrresistancetrintratrpopulationtroftrpath
ogenictrBacteriatristrantrexampletrof:

A)trevolution

B)trmutation