BiologyFinalReviewPacket1.Informationgatheredfromobservingaplantgrow3cmoveratwoweekperiodresultsin?(B1.1g)
a.inferences c.hypothesisb.variables d.data
2.Whichofthefollowingcharacteristicsoflivingthingsbestexplainswhybirdsflysouthforthewinter?(B2.6a,B2.3a)(HSLS13)
a.Livingthingsrespondtotheirenvironmentb.Livingthingsmaintainaninternalbalancec.Livingthingsaremadeupofunitscalledcellsd.Livingthingsarebasedonauniversalgeneticcode
3.Inmoststablefreshwaterenvironments,populationsofDaphniaarealmostentirelyfemaleandreproduceasexually.However,malesareobservedinlowoxygenenvironmentsorwhenfoodisscarce.Basedontheseobservations,aresearchersuggeststhatmaleDaphniadevelopinresponsetounfavorableenvironmentalconditions.Thisisanexampleof(B1.1D,B1.1E)
a.result c.procedureb.theory d.hypothesis
4.Observethefollowingdiagram,whichwastakenfromoneofCharlesDarwinsnotebooks.
Thewords,Ithinkcanbeseenatthetopofthepageandabranchingdiagram isshownbelowthat.(B1.2h,B1.2k)
ThispicturerepresentsoneofDarwins
a.guesses
b.questions.
c.observations.
d.laws.5.Twostudentsweretestingtheamountoffertilizerthatwouldbestpromotethegrowthofstrawberriesinagarden.Whichofthefollowingcouldbeanunavoidablesourceofexperimentalerror?(B1.1B)
a. lengthofthestudyb. variationinthestrawberryplantsc. thecostofwateringtheplantsd. fertilizationduringthestudy
6.Ascientistisstudyinghowtemperatureaffectsbacteriagrowth.
Thefollowingisherexperimentaldesign:
Countthebacterialgrowthatthesametimeeachday
Place3petridisheswiththebacteriaintherefrigeratorandplace3morepetridisheswithadifferenttypeofbacteriainanincubator
Useadifferenttypeofagarineachpetridish
Whatobservationcanyoumakeaboutherexperiment?(B1.1B,B1.1f)
a.Herdesignwillefficientlymeasuretemperaturechangesonbacteriagrowth.
b.Shehastoomanyvariablesandwillnotbeabletomakeareliableconclusion.
c.Differenttypesofagarwillserveastheindependentvariableintheexperimentaldesign.
d.Hervariablesarecontrolledwithinthedesignoftheexperimentalinvestigation.
Name______________________________
7.Researchhasledscientiststoconcludethatfevershelpthehumanbodyfightinfectionbyelevatingbodytemperaturesandcausingpartsoftheimmunesystemtoworkbetter.
Whichstatementdoesthisconclusionbestsupport?(B1.1A,B1.1E)
a.Feversdisrupthomeostasis.
b.Feversshouldimmediatelybetreatedwithmedication.
c.Feversareanecessarypartofmaintaininghomeostasis.
d.Feversarerarelycausedbybacterialinfections.
8.InAugust2006,theInternationalAstronomicalUnionremovedPlutosstatusasaplanetandnameditadwarfplanet.
WhatpromptedthereclassificationofPluto?(B1.1i)
a.Anewtelescopeintroducedin2006allowedscientiststoseeabetterviewofPluto.
b.ScientistsbasedtheirdecisiononknowndatafromPlutoandotherobjectsinthesolarsystem.
c.AmannedmissiontoPlutoprovidedevidencetomakeitadwarfplanet.
d.Scientistswerebiasedtomakethesolarsystemhaveeightplanets.
9.Whichofthefollowingisnotacharacteristicofalivingorganism?(B2.6A)(HSLS13)
agrowthanddevelopment
babilitytomove
cresponsetoenvironment
dabilitytoreproduce10.Observethemodelsontherightshowingionicandcovalentbonding.
Whatstatementcorrectlydescribesthemodels?(B2.2D,2,4e)(HSLS11,HSLS16,HSLS17,HSLS31
a.ModelIshowsionicbondingbecausethevalenceelectronsareshared.
b.ModelIshowsionicbondingbecauseoneelectronistransferredtoanotheratom.
c.ModelIshowscovalentbondingbecausethevalenceelectronsaretransferred.
d.ModelIIshowscovalentbondingbecausethevalenceelectronsaretransferred.
11.Whichofthefollowingisthecorrectrankingoforganizationalhierarchyoforganismsfromsimplesttomostcomplex?(B2.5B)(HSLS12)
a.cells,organs,tissues,organsystems,organisms
b.cells,tissues,organs,organsystems,organisms
c.tissues,cells,organs,organsystems,organisms
d.tissues,organs,cells,organsystems,organisms12.Whichofthefollowingcharacteristicsoflivingthingsbestexplainswhybirdsflysouthforthewinter?(B2.6a,B2.3a)
a.Livingthingsrespondtotheirenvironmentb.Livingthingsmaintainaninternalbalancec.Livingthingsaremadeupofunitscalledcellsd.Livingthingsarebasedonauniversalgeneticcode
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13.Sugarinourcellsreactsveryquicklywithoxygen.Thesamesugarwillreactveryslowlywiththeoxygeninair.Thereasonforthisdifferenceisbecause(B2.2f,B2.3A)(HSLS11,HSLS13)
a.ourbodiesarewarmerthantheair. c.thesugarexposedtoairisinsolidform.
b.cellscontaincatalyststospeedthereaction. d.thesugarinourcellscontainsmoreenergy.14.Themostimportantatominmostlivingthingsis(B2.2B)(HSLS16,HSLS25)
a.carbon c.hydrogenb.oxygen d.nitrogen
15.Youhavejustgoneforafivemilerun,andyouarenowfeelingsluggishandtired.Whichoftheorganiccompoundswouldhelpyoutofeellikeyourselfthequickest?(B2.2D,B2.3C,B2.3e)(HSLS11,HSLS12,HSLS13,HSLS16,HSLS17,HSLS26,HSLS31)
a.carbohydratesb.lipidsc.proteinsd.nucleicacids
16.Enzymesaffecttherateofcellularrespirationbychangingthe(B2.5D)(HSLS16,HSLS17)
a.productsofthereaction c.temperatureofthereactionb.speedofthereaction d.pHofthereaction
17.Whichstatementcorrectlydescribeshowcarbonsabilitytoformfourbondsmakesituniquelysuitedtoformmacromolecules?(B2.2A)(HSLS16,HSLS17,HSLS25)
a. Itformsshort,simplecarbonchains.b. Itformslarge,complex,diversemolecules.c. Itformscovalentbondswithothercarbonatomsd. Itformscovalentbondsthatcanexistinasingleplane.
18.Carbohydratesandproteinsaretwotypesofmacromolecules.Whichfunctionalcharacteristicofcarbohydratesdistinguishesthemfromproteins?(B2.5A)(HSLS16)
a. largeamountofstoredinformationb. abilitytocatalyzebiochemicalreactionsc. efficientstorageofusablechemicalenergyd. tendencytomakecellmembraneshydrophobic
19.Whentheconcentrationofmoleculesonbothsidesofamembraneisthesame,themoleculeswill(B2.3B,B2.5h)(HSLS13)
a.moveacrossthemembranetotheoutsideofthecellb.stopmovingacrossthemembranec.moveacrossthemembraneinbothdirectionsd.moveacrossthemembraneinsideofthecell
20.CompareEukaryotestoProkaryotes.Whichisthebestcomparison?(B2.4d)a.Eukaryoticcellsaremuchsmallerthanprokaryotesb.Eukaryoteshavepermeablemembranesandprokaryotesdonotc.Eukaryoteshaveahigherrateofreproductionthanprokaryotesd.Eukaryoteshavenucleiandprokaryotesdonot
21.WhichcellularorganellecontainsDNAandcontrolsthefunctionofthecell?(B2.5i)
a.Ribosome c.GolgiBody
b.EndoplasmicReticulum d.Nucleus22.Whichofthefollowingcellorganellesisfoundintheplantcellbutnotintheanimalcell?(2.5G)
a. mitochondriab. chloroplastc. ribosomes
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d. endoplasmicreticulum
23.Ifananimalcellisplacedindistilledwater,itwillswellandmighteventuallyburst.
Theswellingandpossibleburstingofthecellisaresultofwhichbiologicalprocess?(B2.5h,B2.3B,B2.3C,B2.6A)(HSLS13MHSLS26)
a.Activetransport b.Enzymeactivity c.Osmosis d.Respiration
24.Theillustrationsrepresenttwodifferentcells.
WhichstatementbestidentifiesCellXandCellY?(B2.4A)(HSLS11,HSLS12,HSLS31)
a.CellXisprokaryoticandCellYiseukaryotic.
b.CellXisanervecellandCellYisnervetissue.
c.CellXisaredbloodcellandCellYisamusclecell.
d.CellXisaplantcellandCellYisananimalcell.
25.Astudentiscollectingthegasgivenofffromaplantinbrightsunlightatatemperatureof27C.Thegasbeingcollectedisprobably?(B3.1B,B3.1D,B3.1f)(HSLS15,HSLS17,HSLS25)
a.oxygenb.carbondioxidec.ATPd.vaporizedwater
26.Ifcarbondioxideisremovedfromaplantsenvironment,whatwouldyouexpecttohappentotheplantsproductionofhighenergysugars?(B3.1B,B3.1D,B3.1f,B2.5C,B2.1A)(HSLS15,HSLS17,HSLS23,HSLS25)
a.moresugarswillbeproducedb.fewersugarswillbeproducedc.thesamenumberofsugarswillbeproducedbutwithoutcarbondioxided.carbondioxidedoesnotaffecttheproductionofhighenergysugarsinplants
27.Howarecellularrespirationandphotosynthesisalmostopposite?(B3.1C,B3.1e,B2.1A,B2.1B,B2.5e)(HSLS15,HSLS17,HSLS23,HSLS24,HSLS25)
a.Photosynthesisreleasesenergy,andcellularrespirationstoresenergyb.Photosynthesisremovedcarbondioxidefromtheatmosphere,andcellularrespirationputsitbackc.Photosynthesisremovesoxygenfromtheatmosphere,andcellularrespirationputsitbackd.Alloftheabove
28.Thecellsofsomeorganismscontainbothchloroplastsandmitochondria.Whichstatementdescribeswhatwouldhappeninthesecellsiftheyweremovedfromalightenvironmenttoadarkone?(B3.1B,B3.1D,B2.5f,B2.1B)(HSLS15,HSLS17,HSLS25)
a.Theamountofoxygenpresentwoulddecreaseandtheamountofcarbondioxidewouldincreaseb.TheamountofglucosepresentwouldincreaseandATPwouldnolongerbeavailablec.TheamountofcarbondioxidepresentwoulddecreaseandATPwouldcontinuetobesynthesizedd.Theamountofoxygenpresentwouldincreaseandtheamountofglucoseavailablewoulddecrease
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Figure129.WhichofthegraphsinFigure1representstheeffectoftemperatureontherateofphotosynthesis?(B3.1B,B3.1D)(HSLS15,HSLS17,HSLS25)
a.Ab.Bc.Cd.D
30.WhichofthegraphsinFigure1representstheeffectoflightintensityontherateofphotosynthesis?(B3.1A,B3.1B,B3.1D)(HSLS15,HSLS17,HSLS25)
a.Ab.Bc.Cd.D
31.BetweenwhichpartsofthemoleculemustthebondsbebrokentoreleasetheenergystoredinthisATPmolecule?(B2.5D)(HSLS16,HSLS17)
a.AandBb.BandCc.CandDd.Noneoftheabove
32.EnergyisreleasedfromanATPwhen..(2.4f)(HSLS16,HSLS17)
a.aphosphategroupisaddedb.adeninebondstoribosec.ATPisexposedtosunlightd.Aphosphategroupisremoved
33.Whichofthefollowingareusedintheoverallreactionsofphotosynthesis?(B2.1A,B3.1C,B3.1e,B3.1f)(HSLS15,HSLS17,HSLS23,HSLS24)
a.carbondioxideb.waterc.lightd.alloftheabove
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34.Inwhichareadoesthesunsenergygettransferredintochemicalenergy?(B2.5f)(HSLS15)
AB CD
35.Thecalvincycletakesplaceinwhichspace?(B2.5f)(HSLS15)ABCD
36.Whatisaproductofthecalvincycle?(B3.1B)(HSLS15,HSLS17,HSLS25)
a.oxygengas c.sugarb.ATP d.carbondioxide
37.Glycolysisrequires(B3.1B)(HSLS15,17,25)
a.anenergyinput c.hourstoproducemanyATPb.oxygen d.NADP+
38.Whatisthecorrectequationforcellularrespiration?(B3.1C)(HSLS15,HSLS17)a.6CO2+6H2O>C6H12O+6O2b.6CO2+C6H12O6>6O2+6H2Oc.C6H12O6+6O2>6CO2+6H2O+36or38ATPd.6O2+6H2O>6CO2+C6H12O6
39.Whatisthecorrectequationforphotosynthesis?(B2.1A,B3.1C)(HSLS15,HSLS17,HSLS23,HSLS24)
a.6CO2+6H2O>C6H12O+6O2b.6CO2+C6H12O6>6O2+6H2Oc.C6H12O6+6O2>6CO2+6H2O+36or38ATPd.6O2+6H2O>6CO2+C6H12O6
40.Whichofthefollowingshowsthecorrectsequenceduringcellularrespiration?(B2.5D) A.ElectrontransportchainglycolysisKrebscycle B.GlycolysisElectrontransportchainKrebscycle C.KrebscycleElectrontransportchainglycolysis D.GlycolysisKrebscycleElectrontransportchain41.Inwhichareawouldtheinitialsplittingofsugartakeplace?(B2.5i)
a.1b.2c.3d.4
42.InwhichareawouldtheelectronsbeingusedtopowertheproductionofATPbefound?(B2.5i)
a.1b.2c.3d.4
43.Cellsgrowninapetridishtendtodivideuntiltheyformathinlayercoveringthebottomofthedish.Ifcellsareremovedfromthemiddleofthedish,thecellsborderingtheopenspacewillbegindividinguntiltheyhavefilledtheemptyspace.Whatdoestheexperimentshow?(B1.1E,1.1g,2.1C,2.6B,2.6C,3.4C,3.5B)(HSLS12,HSLS14,HSLS21,HSLS22,HSLS26,HSLS27,HSLS28,HSLS46)
a.Whencellscomeintocontactwithothercells,theystopgrowingb.Thecontrolsoncellgrowthanddivisioncanbeturnedonandoffc.Celldivisioncanberegulatedbyfactorsoutsidethecelld.alloftheabove
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44.ThetablebelowliststhetypicaldiploidnumberofchromosomesofseveraldifferentorganismsDiploidChromosomeNumber
Goldfish 94
Potato 48
Human 46
Pea 14
FruitFly 8
Whichofthefollowingisthebestexplanationforwhythechromosomenumberisanevennumberineachoftheseorganisms?(B1.1D,B1.1E,4.3A,4.2B)(HSLS14,HSLS31)
a.Itisonlyacoincidencemanyotherorganismshaveanoddnumberofchromosomesb.Thediploidchromosomenumberisalwaysevensothatwhenmitosisoccurseachnewcellgetsthesamenumber
ofchromosomesc.Thediploidchromosomenumberrepresentspairsofchromosomes,onefromeachparent,soitisalwaysaneven
numberd.Chromosomesdoubleeverytimethecelldivides,soafterthefirstdivision,thenumberisalwayseven
45.ThediagrambelowshowsastrandofDNAmatchedtoastrandofmessengerRNA.
Whatprocessdoesthisdiagramrepresent?(B4.2g)(HSLS11,HSLS31)
a.Mutation
b.Respiration
c.Transcription
d.Translation46.Amalfunctionoccursduringanaphase1ofmeiosis,whatwouldbethepossibleresultsofthespindlefibersmalfunctionifthegametethatlostachromosomeispartofthefertilization?(4.3b,4.3f.4.3d)(HSLS32)
a.theembryoaftergametefusionwillhaveamonosomyb.heembryoaftergametefusionwillhaveatetraploidc.heembryoaftergametefusionwillhaveapolyploidyd.heembryoaftergametefusionwillhaveatrisomy
47.AscientistputsnucleotidechainsofUUUUUUinatesttubeunderconditionsallowingproteinsynthesis.Soonthetesttubeisfullofpolypeptidechainscomposedofonlytheaminoacidphenylalanine.Whatdoestheexperimentindicate?(B4.2f,B4.2g)(HSLS11,HSLS31)
a.Theaminoacidphenylalanineiscomposedofuracil c.Proteinsynthesismalfunctionsintesttubesb.UUUcodesfortheaminoacidphenylalanine d.Mostproteinscontainonlyonetypeofaminoacid
48.Whatmoleculeallowshereditaryinformationtobepassedfromgenerationtogeneration?(B4.1B,B4.2C)(HSLS11,HSLS31,HSLS32,HSLS33)
a.DNA b.ATP c.Lipids d.Proteins
49.IftheamountofadenineinaDNAmoleculeis20%,thentheamountofcytosinewouldbe(B4.2C)(HSLS11,HSLS31)
a.20% b.30% c.50% d.80%
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50.Whatisproducedduringtranscription?(B4.2g)(HSLS11,HSLS31)A.RNAmolecules c.RNApolymeraseb.DNAmolecules d.proteins
51.Hoxgenesdetermineananimals?(B2.1D,B2.4A,B4.1B)(HSLS11,HSLS12,HSLS14,HSLS31,HSLS32,HSLS33)
a.size c.bodyplanb.color d.eyecolor
52.TheDNAsequencefromanendangeredpupfishwascomparedtotheDNAsamplescollectedfromcloselyrelatedfishspecies.ThetablebelowshowsaportionoftheDNAsequencesfromeachofthefishspecies.(B1.1d,B1.1e,B4.2A,B4.3B,B4.3f,B4.4A,B5.2B,B5.2C,B5.3A)(HSLS31,HSLS32,HSLS42,HSLS43,HSLS44,HSLS45)
PupFishDNASequence ATTAAGCCGATA
Fish1 ATTGAACCGATA
Fish2 ATTAAGCGGATA
Fish3 TTTGAACGGAAA
Fish4 ATTGAACGAATA
Listthefishfromtheleasttomostcloselyrelatedtothepupfish.
a.Fish1,Fish2,Fish3,Fish4
b.Fish4,Fish3,Fish1,Fish2
c.Fish3,Fish4,Fish1,Fish2
d.Fish2,Fish1,Fish4,Fish353.3ofthe4answersbelowaresourcesofgeneticvariation.Selecttheexception.(4.3E)(HSLS32)
(a)crossingover(b)mutation(c)asexualreproduction(d)independentassortment
54.Multiplepointmutationsinthecyclinscanresultin__________tolosetheirnormalfunctionsandcouldpossiblyresultinthecell_____________?(4.4B)(HSLS42)
a. nucleicacids,deathb. nucleicacids,cancerc. enzymes,deathd. enzymes,cancer
55.Geneticengineeringhasproducedgoatswhosemilkcontainsproteinsthatcanbeusedasmedicines.Thiseffectwasproducedby(5.3F)(HSLS44,HSLS46)Amixingforeigngenesintothemilk.Binjectingforeigngenesintothegoatsudders.Cinsertingforeigngenesintofertilizedgoateggs.Dgeneticallymodifyingthenutritionalneedsofthegoatsoffspring.56.Insnapdragonflowerscolorisincompletelydominant.Ahomozygousredfloweriscrossedwithanheterozygouspinkflower.Whatistheprobabilitytheoffspringwillbered?(B4.1e,B4.1C)
a. 25% b.50% c.75% d.100%57.Aresearcherperformsacrossbetween2mice,bothhavingblackfur.Blackforisdominantoverwhitefor.75%oftheoffspringhaveblackcoatsand25%havewhitecoats.Theresearchercanassumethattheparentsgenotypesweremostlikely:(B4.1C,B4.1D,B4.1e)(HSLS32,HSLS33)a.BBXBB b.BbXBb c.BBXbb d.bbXbb
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58.Ageneticdisorderduetoarecessiveallele(a)islethalinhomozygousindividuals(aa),whereasheterozygousindividuals(Aa)havenosymptoms.Basedonthisinformation,whichofthefollowingislikelytoresult?(B4.1C,B4.1e,B4.4C,B5.1A,B5.1e,B5.1g)(HSLS32,HSLS33,HSLS42,HSLS43,HSLS45)
a.Thedisorderwillquicklybeeliminatedsincenorecessivehomozygoteswillsurvivetoreproduceb.Thedisorderwillbemaintainedinthepopulationthroughthereproductionofheterozygotesc.Onlyhomozygousdominant(AA)individualswillsurvived.Theprevalenceofthedisorderwillincreaseovertime
59.IfamanwithbloodtypeAandawomanwithbloodtypeBproduceanoffspringwhatmighttheoffspringsbloodtypebe?(B4.1e,B4.1C)(HSLS32,HSLS33)
a.ABorO b.A,BorO c.A,B,AB,orO d.ABonly60.Thetableshowsfourdifferentmutationsthatoccurredindifferentgenesthatarelocatedinaskin,gamete,muscle,andnervecellinanindividualrabbit.
Whichmutationcouldbeinheritedbytherabbitsoffspring?(B4.2A,B4.2D,B4.3B,B4.3F)(HSLS11,HSLS31,HSLS32)
CellType Trait Normal Mutation
Skin FurColor BlackFur WhiteFur
Gamete EyeColor BrownEyes RedEyes
Muscle FurThickness ThickFur ThinFur
Nerve TailLength LongTail ShortTail
a.Whitefur b.RedEyes c.ThinFur d.ShortTail61.Ifnondisjunctionoccursduringmeiosis(B4.2e,B4.3B,B4.3f)(HSLS32)
a.onlytwogametesmayforminsteadoffourb.somegametesmayhaveanextracopyofsomegenesc.thechromatidsdonotseparated.itoccursduringprophase
62.Typhoidfever,adiseasethatcausesheadaches,digestiveupset,andahighfever,iscausedbythebacterium,Salmonellatyphi.Typhoidcanbespreadfrompersontopersonbycontaminatedwaterorfoodorbylackofcleanliness.Sincethe19thcentury,thenumberofindividualsinfectedwiththisdiseasehasdecreased.Whichstatementbestexplainswhythenumberofpeoplewiththisdiseaseandotherbacterialdiseaseshasdecreasedoverthelast100years?(B1.2B,B1.2k)
a.Scientistshavecorrectedthedamagedgenesthatcausetyphoidfeverandotherinfectiousdiseasesb.Publichealthofficialshaveplacedbettercontrolsontheuseoftoxicsubstancesthatcausethesediseasesc.Typhoidfever,likemostotherbacterialdiseases,isoftencausebyalackofpropernutritiond.Personalhabits,suchashandwashing,havegreatlyreducedcontaminationfrombacteria
63.Exposingapopulationofplantstoradiationorcertainchemicalscanincreasethefrequencyofmutationsthatoccurwithinthepopulation.(B4.2e)(HSLS32)
a.True b.False64.AspeciesoffinchhasbeenstudiedononeofthegeographicallyisolatedGalapagosIslandsformanyyears.Sincetheislandissmall,thelineageofeverybirdforseveralgenerationsisknown.Thisallowsafamilytreeofeachbirdtobedeveloped.Somefamilygroupshavesurvivedandothershavediedout.Thegroupsthatsurviveprobablyhave(B5.1A,B5.1B,B5.1D,B5.1e,B5.1g,B5.3B)(HSLS41,HSLS42,HSLS43,HSLS44,HSLS45)
a.interbredwithotherspeciesb.inheritedsomeadvantageousvariationsc.foundnewplacesontheislandtolived.beenattackedbymorepredators
65.Whichofthefollowingprovidesthemostconclusiveevidencethatorganismsoftwodifferentspeciesshareacommonancestor?(B.5.1C,B5.2B)(HSLS41,HSLS42,HSLS43,HSLS44,HSLS45)
a.Theyliveinthesameecosystem. c.TheyhavesimilarDNAsequences
b.Theyreproduceatthesametime. d.Theyhavesimilarbodymovements
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66.Theillustrationbelowshowsthepelvicboneofamoderndaybaleenwhaleandareconstructionofanextinctwhalebaseduponfossilevidence.
Whatisthebestexplanationforthepresenceofthevestigiallimbsinbothwhalespecies?(B5.1e,B5.1f)(HSLS41,HSLS42,HSLS43,HSLS45)
a.Whaleshavefunctioninghindlimbsandcanwalkonlandwhennecessary.
b.Whalesareevolvingintoaspeciesthatwilleventuallyhavefourlegs.
c.Whalesevolvedfromaspeciesthathadfunctioninghindlimbs.
d.Whaleslosttheirhindlimbsbecausetheystoppedusingthem.67.Asinglespeciesofsquirrelevolvedovertimeintotwospecies,duetothechangingofgenesinresponsetotheirenvironment,eachonoppositesideoftheGrandCanyon.Thischangewasmostlikelydueto(DOK2)(5.3C,E,B2.2G)(HSLS11,HSLS42,HSLS44,HSLS45)
a.highmutationratesononesideb.lowgeneticdiversityintheinitialpopulationc.theisolationofthetwogroupsd.differencesinreproductiverates
68.Asinglespeciesofsquirrelevolvedovertimeintotwospecies,eachonoppositesideoftheGrandCanyon.OnbothsidesoftheGrandCanyonawindstormknocksoutallnutproducingtrees.ThesquirrelspeciesononesideoftheGrandCanyondiesoff,buttheothersquirrelspeciescontinuestothrive.Whichofthefollowingbestexplainswhy?(DOK2)(5.3D)(HSLS42,HSLS44,HSLS45)
a.bothsquirrelspeciesfedonthenuttreesonlyb.bothsquirrelspecieshadadiversedietc.onesquirrelspeciesonlyfedonnuttreeswhiletheotherhadadiversedietd.bothsquirrelspeciesonlyfedonnuttrees,butonewasabletoadapttoberries
69.Thespineofaseaurchinandthequillofaporcupineare...
a.Analogousstructures c.Divergentevolutionb.Homologousstructures d.Vestigialstructures
70.Whichofthesewouldhavetheleasteffectonnaturalselectioninasubspeciesofgiraffesthatisgeographicallyisolatedfromothersubspeciesofgiraffes?
a.availableniches c.chromosomenumberb.existingpredators d.availablefoodresources
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