第頁共頁閱讀訓(xùn)練題備考2023年GMAT考試閱讀訓(xùn)練題備考2023年GMAT考試Althoughnumbersofanimalsinagivenregionmayfluctuatefromyeartoyear，thefluctuationsareoftentemporaryand，overlongperiods，trivial.Scientistshaveadvancedthreetheoriesofpopulationcontrolto(5)accountforthisrelativeconstancy.Athirdtheory，proposedbyWynne-Edwardsandtermed“epideictic，”arguesthatorganismshaveevolveda&;code“intheformofsocialorepideicticbehavior(40)displays，suchaswinter-roostingaggregationsorgroupvocalizing;suchcodesprovideorganismswithinformationonpopulationsizeinaregionsothattheycan，ifnecessary，exercisereproductiverestraint.However，wynne-Edwards’theory，linkinganimalsocialbehavior(45)andpopulationcontrol，hasbeenchallenged，withsomejustification，byseveralstudies.1.Theprimarypurposeofthepassageisto(C)provideexleofsomeofthewaysinwhichanimalsexercisereproductiverestrainttocontroltheirownnumbers(D)suggeststhattheoriesofpopulationcontrolthatconcentrateonthesocialbehaviorofanimalsaremoreopentodebatethanaretheoriesthatdonot(E)summarizeanumberofscientifictheoriesthatattempttoexplainwhyanimalpopulationsdonotexceedcertainlimits(A)usetheirtheorytoexplainthepopulationgrowthoforganismswithshortlifecycles(B)reproducetheresultsofthestudyofChristianandDavis(C)explainadequatelywhythenumbersofapopulationcanincreaseasthepopulation’srateofgrowthdecreases(D)makesufficientlyaccuratepredictionsabouttheeffectsofcrowding(E)demonstratehowpredatorpopulationsarethemselvesregulated(A)AsthenumberoffoxesinMinnesotadecrease,thegrowthrateofthispopulationoffoxesbeginsofincrease.(B)AsthenumberofwoodpeckersinVermontdecreases,thegrowthrateofthispopulationofwoodpeckersalsobeginstodecrease.(C)AsthenumberofprairiedogsinOklahomaincreases,thegrowthrateofthispopulationofprairiedogsalsobeginstoincrease.(D)AfterthenumberofbeaversinTennesseedecreases,thenumberofpredatorsofthesebeaversbeginstoincrease.(E)AfterthenumberofeaglesinMontanadecreases,thefoodsupplyofthispopulationofeaglesalsobeginstodecrease.4.AccordingtotheWynne-Edwardstheoryasitisdescribedinthepassage,epideicticbehaviordisplaysservethefunctionof(A)determiningroostingaggregations(B)locatingfood(C)attractingpredators(D)regulatingsexualactivity(E)triggeringhormonalchanges5.ThechallengeposedtotheWynne-Edwards-theorybyseveralstudiesisregardedbytheauthorwith(A)pleteindifference(B)qualifiedacceptance(C)skepticalamusement(D)perplexedastonishment(E)agitateddismay6.Whichofthefollowingstatementswouldprovidethemostoflogicalcontinuationofthefinalparagraphofthepassage?(A)Thuswynne-Edwards’theoryraisesseriousquestionsabouttheconstancyofanimalpopulationinaregion.(D)Someofthesestudieshave,infact,workedoutasystematicandplexcodeofsocialbehaviorthatcanregulatepopulationsize.(E)Onestudy,