B235Hor S09 TF noAns

B235Hor S09 TF noAns - PR E OM 1.C D41 PR EME COM 11 PR EME...

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Unformatted text preview: - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. BtL 35 2 Dr. Horvitz COM - PR EME D4 F lnalExam Sprjng 2009 May6, 2009 ED4 11. COM - PR EM ED4 11. Instructions: . Writeyour nameand lD nlmber on lhe answer sheet . B(bblein the corfesponding circles. Signthe honoacode and bubblein permission post your score. to Choosethe one best answerfor each multiDle choicequestionand bubblein the corresPonding circle. Whenyou are done€ise your hand, TA or I willpickit up. the Haveyour lD ready check. to lD rhrq.,'h'!r .\(.rlL tl i).h COM t.Ll C.n,ru. Rc.cnr Pr.nk{cn. Piolcnc 11. QhrshJry - PR EM ED4 Tcn'Jry lnn ibuhdrn( Aa7 ns r' rar fi6r no\r.g ED4 11. COM - PR EM ED4 11. MJny ma!(,n 1yp6 or mrmmJls F,n rli.ciral,n.n nrI COM otao.cne Priro.cn. l)cnnryr\'rnan t ^rbnd, ai.l namn!1 JfloiJ!tr ml nn noi1.r rb!4 rnr Fnn d no$u6, rbnr.linr .ycadr t )J.kr d xrn['blrn, rb!,drii rs€ Dimnlve kccr rid rcrn5 rrn imphibianr r.d i'nmDi(c,. .CO MPRE M ED4 11. COM - PR EM crbonfcrour pJnsi exrin(oi ot Ix1nd oi of niny li.t! of hr, ]c ,drnrr, irLr,,!td trr.lrdc, CrcrL.!;l lorn rs forcn,..oniac,i; PRE MED 411 5ds.e /rl0rrLtr/i,,rr Inn rn,L' tr'!,rrbat, Jom,D ! F;( rb\ ,dJr (to,d or'f nc ,fc riL.btr.s domnrni rL rowc! bt [oik exrsneLy nre .oili\ri,]B ol Frim !,c aqLrb. rLr^ l Jirtr t\h'rrJ, is the efa of the recentanimals(Age of Maftmals);this periodbegan _ yearsago. wentextinct million whenthe dinosaurs _ A). Paleozoic. 590 144 B) Mesozoic. Q Cenozoic,2 iqcenozoic,65 lessen impact anthropogenic lhe of addition of 2. To whatextent can the oceans carbon dioxide the atmosphere curaent lo at rates? is anthropogenic to the inp!t A) Theirabsorptive capacity lessthan 1% of current almospnere. inp!t to 8) Theif absorpt've capacityis less than 10% of currentanlhropogenic the atmosohere. tR -. input tc the fq) Their absomtivecapacityis less than half of currentanthropggenic atnBsphere D) Their absorptive lnput to the capacityis about equal lo cufrentanthropogenic atmospnere. - PR EM l , rL , l ( l - 1 1 1. Refer to the Table, Pickthe pair that correctlyllll in both blanks: :86.000.000 3. In decidingthe rate at whichwe shouldplan to use a resource(an ecologicalprocess or maleriaJ), it whal should ruleof thumbbe if we wantto mainlain as a sustainable lhe rcsouace? exploitatlve be capabllity A the rateof useshould equalto our technological (g)the rate of use shouldbe equalto the rate of restoration It the rate of use shouldbe detenninedby the owner of on O) the €te of use shorrldbe determinedby monetaryprofllability expiortal 4. Which of tne followingafe noled for the wide vanely of specialized biochemical mechanisms energy for transformations? A) plants B) fungi C) aDimals fD) bacteriaand other prokaryotes - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. - PR EME D4 !, t COM - PR EM ED4 11. COM 5 M arqurs Whelan and conducted experimental studyin the oak forests the an field of Ozarks They noticedlhal there were calerpillars eatingpiecesof oak leaves. The, thoughtthat birds mightbe feedingon the caterpillars.To investigate what would happento the oaks ifthe bird populatjons were reduced, they buitdsorne lafge cages aro!nd patchesof oaks. The cages effectively excludedthe birds. Then the-v cou-nreo caterp'lrars leafdarnage and insrde and oujside cages Whatdrdtheyfi^ci? the Al There were more caterpillars outsidethe cages. @\There were more caterpilarsinsideihe cag;s. Ct Tbere was more leaf damage outs;delhe cages. O) Bifdshavean Indirect detrimental effect the oaks. on COM - PR EM ED4 11. COM - PR EM ED4 11. 6. ln the fllmyou sawon rcstoring tropical forests, dry whalwas Janzen's theoryabout '5e hrslo',c 'oje of I\e gonphotheres the trop.cal to'estsot CenlralAmefjca? rn dry A).He proposedthat these tiny furry creaturesare nocturnalfurtiveseed Dreoalors. proposed thesestingrng lhat insects protect Acacia treesfrombeingeaten. I He (C) He proposed lhtsexttnct that megafauna wit" ther largejawswer,e the principalseed drspersers many speciesoftrees that have largefruits with of tough, ha.d outercoveringsand that present-day horsesand catflemay be aDte to srrbs(rtute them. for D) He proposedthat theseflightlessbirds were attitudinal migrantsdaringthe dry seasonand were the first to go exlinctwhen the l\raorjpeoplea(ived in Cenval America A) Move one o61ave the right,closorto J6 and more specieswould appearin to the sample,as they become 'unveiled' at lhe left edge. B) Stay where it is, but the veil line would move. C) Move one octaveto the left. closerto 4 and the numberof speciesin the mode would double,the shapewould becomemore like a ',reverse J.". D) worrldbe achreved 408 species. by '10. Referto the Table. COM - PR EM ED4 11. 7. An excessof nitrates phosphates aquatrc and in syslertsis catled A] eutroohicstion E) bioaccumulation C) acidminedrainage D) the greenhouse effecl Referto the flgure of Preston'sdata on lhe communityof mothsattractedto lighttrzrps for a sampleof 50,000motbs.Note the log-normal shape of the distribution relat;ve of abundances. The x axis is on a log2scale, sometimescalled.octaves"and that the modal abundanceis locatedabout 3 octavesto the rightof the veit {ine_ There are 48 species the modeand the modalabundance between and 8. closer 8. in is 4 lo According histheory, the sample to if werelo incfease iOO,OO0 to moths. mode the - PR EM ED4 11. B. The sequentialexploitation whales in the nineteenth of (humback,right,bowhead and grey)and twentieth(blue,fln, sperm, and sei) centuriesis an exampleot PRE MED 411 .CO MPRE M ED4 11. COM practices A) sustainable harvest resource stralegy rolg tern returns use on ,zu oasing 1C)crass overexploilation humans c by and resLlll'nq colapseof a resource DJ ._terlattonaicooperatton save a lhreatenedspectes lo CalculateH' for Community2. A) 0.s46 B) 1.452 q\0.742 o\ 2.123 11. Which of the followingis NOT a reasonthat largeislandshave more species? A) bettertarget populations B) biggef Cl more habitats / D)'rnorerainfall - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. - PR EME D4 11. COM gradieni diversity thatthereare 1 2. The latiludinal in is A) morespecies the lemoerale In zo4e Elmore specresIn rne ltoprcs C) moresDecies closeto the mainlaod D) more speciesin Northernconlinents E E loo ED4 11. COM - PR EM ED4 '13. Differenl types of soil difier in how tightlythey can hold onto water. Choosethe pair that correctly in bothblanks:lfwateris heldlessstrongly lllls than-0.1atm,then if water is held more skonglythe -15 atm, then _. _; Aplants can get it, gravitygets it ( b/-gravitygets it and plantsdon 1,soil holds on to it and plantscan't get it C) gravityor plantscan get it, soil or plantscan get it D) none of the abovo COM - PR EM ED4 11. COM - PR EM '14.Why is theremoreannualva ationjn lemperature nodhemiatitudes in than in southern latitudes? A) Becausethe land massesin the noath were connectedfor a longerperiod du.inggeologic time. 6|Because there is more Iand and less waler in the norththan in the soulh, and Fateabufferstempera{ure changes C) Becauseofthe tiltingofthe earth and the seasons. D) Becausethe warm tropicalwaters used to flow from pole to pole when the continenlswere in differenlpositions'15. lo the COM - PR EM ED4 11. pattems,which way do the winds big generalpictureof global air circulation bjow ir{he first soulhefiihemisphereband,0-30" S? 'A) These are westerlies, blowingfrom west to east. B) These are the SE tradewinds, blowingfrom the southeast to the west. C) These are the NE tradewindsblowingtrom the north east to the west. D) These are the SE tradewinds, blowingfrom the west to the south east. 11. 'l6.Oor abilityto PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 distinguish ditferentbiornesundersimilarcondilionsin difterentparts of the world dependsprimarilyon which of the followingfaclors that influence the distributions growthforms? of A) Uniqueevolutionary historiesin differentpartsof the world. B) Chanceeventsthat preventdispersalof organismsto all partsof the world. C) Interactions amongspecies. torm and environment. O The mat6hingof Orowth 17. .Relertothe diagram aboveof Whittakeas ofbiomes. This diagfam shows eoncapt tha(the has rel6tively hjgi avefageannual precipiiation wrthmlderate avela e annualtemplerature (see choiceson nek page]. 4l IB) ul Di Subtropical deseri Temperate.ain forest tunola Trogicalrain ioresl 18. You are kidnapped withoutyour cell phone and flown to a remote location, where you are keptalivefor a yearby a regular supply foodand clothes of and a shelterthat protectsyou trom excessiverainfallas needed. You are comfortable provided withwriting and reading materials notgiveany clueas to yourlocation but on the pianei otherthan your own observations.You find that it rains a great deal thaoughout most ol the year. lt is also quite warm lhroughoutnost of the year.You are in forestedarea.The vast majorityof trees aroondyou remaingaeenthroughoul the year.The torestis characterized threemainlayers treest by of canop, emergent, and s!bcanopy.Day length alrnost samethrcughout year.lJsing is the whatyothe knowaboutbiomes aodtheifdistribLrtion the planet, whichof the over decide guessas to yourpossible followiog a reasonable location? is A) Japan q Centfal Australia IC! Amazonran Brazrl IJt Fairbanks, Alaska - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. - PR EME D4 COM - PR EM ED4 11. COM through of and fossilrecord showsthe appearances disappearances species 19.-fhe speciestall in geologictime; thesedata indicatethat the life spans of individual the rangeof 1 millionyears to 10 millionyears- Ricklefsenrapolatedfrom these to observalions estimatethe background extihction due to normalbiological goingextinct any givenyearis in processes. the chance a single species lf of between1 in a mi'lionand 1 in 10 millionand there are somewherebetween1 eninctlon the on species the earthnow,he estimates background and 10 million per species year' rateon earthis about_ A) 2,000 B) 200 ED4 11. .c) 20 h'R1 Of the followinglist,which countryhas the lowestqensityof humans? A) lndia B) Mexico -C) Unlted States iDl Australia COM - PR EM ED4 11. COM - PR EM due to on appearcd the planet beforehumans 20.Fivemass extinctionsocclrrred globalcatastrophes (such as occurwhen the earth is hit by an asteroidor there ls the Which ofthe followingis the considered largest a majorgeologicupheaval). species and about70% of landspecies? 95-96% marine of because killed it ExtinctionEventat the end of the f,4esozoic A) The Cretaceous-Tediary ExtinctionEventwithinthe early to mid Mesozoic ,$ The Triassic-Jurassic [gj)tfre eermian-Triassic ExtinctionEventat the end of the Paleozoic perjodin extinction D) The Late Devonian(nearthe Devonian-Carboniferous) the Paleozoic 2 4. Why were the continentsofAsia and Africa sparedfrom the Iull shock of the Pleistocene megafaunaletlinction? A) No humanslived there at that time @)rVery early humans in smallgroupshuntedlarge animalson these continenis __ lor a long time previousto this 6ra; the animalshad evolveddefensive behaviorsover time as humanslearnedto hunt them:there was coevolution betweenhumansand their prey in these places. c) The humansthat livedon these continentsat that time were strictvegetarians D) The humansthat migratedto these continentsfrom the Americasat that time had alreadylearnedtheir lessonsafter lhe overkillfiascothey had committed againstoverelploitation in the Americasand they showedculturaladaptations of their resources. COM - PR EM ED4 11. thatis of 21.The Callfornia condor an example a species 'ecerllygoneextinct botnin tf'e wildand in captv ty. A) _6) Has to into re-introduced the wild after a captlve to Appears havebeensuccessluily program Dreedrng C) Has causedgreat conflictbetweenlumbercompaniesand environmentalisls in D) Sufferedgreatlyfrom habitatfragmentation the last 60 years 11. COM - PR EM ED4 11. a when humans colonlze new 6rea,whichare theflrst to 22.According E.O.Wllson, food ltems they go after? animals A) Smallerswifter !) Woody plants 'C) slower animals Larger, D) lvlushroorns PRE MED 411 .CO MPRE M ED4 to of 23 Which of the followingare thoughlto have coniributed the extinction the megafauna the end of the Pleistocene? at humans hunting newlyarriving by A) Overkill: excessive change B) Climate landinq the Yucatan in Cl An asteroid not ib\ A and B above,bL.r-t C 26. Which ofthe followingwas NOT one ofihe speciesadoptedby the class in lhe "adopt-a-speciesgfoup exercise. A) Red wolf B) Californiacondor parachute C) Peacock spider D) Sicilian tree flr growth,considertwo accounis. 27.Usingbank accountsas an analogyto population Account No. t has $500 in it and Account No. 2 has $ 10 in it. Let's say both by accountsgrow multiplicatively 4% per year, at the end ofthe flrst year,the 'l amountsby which each accountwill have grown is: Account No. = _: AccountNo. 2 = _. Choosethe pair that correctlyfllls in both blanks. A) $ 25;$ 0.25 B)$4;$a c) $5 i$0.25 ,q$20;$0.40 2a. dynamicsof wild Which of the followingis a frequentfeatureof population sDecies? smallerthan a certainthresholdsize may go extinct. A) Populations sustainable may crashsize B) Populations larger thana maximum increase, size show a potentialfor exponential C) Populations an intermediate of z- at least up to a certainpointql All of the above - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM - PR EME D4 11. COM groMh modelof population the representing logistic 32. In the equation dN/d! = r Nft-NK) ED4 11. COM - PR EM ED4 11. -MrrE g'owth modelof population 31 TUilogrslrc growth hi rs a modelof density-independent d) was proposedby Pearland Reed to accountfor lhe dynamicsoi Pararnetiuttl in ooDUlationsthe lab. size of C) is basedon lhe ideathatthe fate of change population slowsdownas sustainable rnaximum a approaches particular the sizeof the population nLrmber. size gets faster and D) is Dasedon lhe idea that the rate of changeof population increases faster as the slze of the populat,on - PR EM P oPulrrlon (ln rhou,rndrl - PR EM ED4 11. COM age-sexstructuregraphs above-Both are for the Referto the human population year 2008. Which of thesecountrieshave more young peopleper each old pefson? A) Sweden Gi] costa Rica Ct Neitherit is aboutthe same D) Not enough data in the picture,we need mole years ot data COM 30. Conslderlhe followingcohortlite table data: 33. Considerthe infomaiion presentedin the flgurefor horseweed(EngelDn of catadersis). When the logarithm averageplant weighi is plottedas a functionof the js whattypeof.elationship described? logarithm density, of ED4 11. Number Number babies age s.irvivingproduced 1000 0 0 '1 0 800 1 500 2 32co2 41@ 5300 600 N/K is -. t-Al the fractio" of the carryingcapacitythat is used up when the populationis at size \.? N. that is noi yet usedup whenthe popllaton rs capacity of B) the fraction the carrying at sizeN. C) ihe intrinsicgroMh rate of the populationat very very low density. (sigmoid-shaped) curve pointofthe s-shaped D) the inflecilon '! - PR EM ED4 11. COM - PR EM curve A self-th,nnrng modeJ. €) A geometricgrow'lh growth model. C) An exponential groMhmodel. D) A logistic a ED4 11. COM and bjrth ratesare describedby thls survivorship whose age-specillc A population PRE MED 411 .CO MPRE M the C) Remaining samesize datato tell O) Nol enough gurrlvrne pr..E lr.dNrdu.r' P.rh2) - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. - PR EME D4 populal,o4 g/oMh rn orscrelerme modelso. in modelswirh : 1^q:l.I 9:o:lg:"rwh;ch a rme'aAmay exhibit of the to,lowjng typesot patlerns: A) smootr stowr.se lo the rhaxirnum sustatnaole poputation size COM inctudins perjods irJ poputartn-oversrroots wh,n ,r. 3l-:.,:1:l:9. rnaxrnum :::l,ht:"s, followed periods ihepoput"ttn sustarnabJe sjze ju"r1"..". by when - PR EM ED4 11. belowi(smaximUm SUstainable size. C\ chaolic behavior resulting crashes extjnction ;n to uJ^anyol lne above.dependingupon the magniludeof the fate of increaseat very low density. 11. COM 35. Competrtion whichkjndof species is interaction? ED4 B) */ - PR EM Gt'iDl oio - PR EM ED4 11. COM usesrmrtar resources rhereso!rces abundanr and are :-u,,lligly'dr",: and-raprdrv "ly".speciespopurarion feprenished lhe and gro*h rateof neither sl."i", i"r;.ii"Jry acces*8these resources, species notconsideredbeco_pui.ni -' the are lo \A)true B) false ED4 dNy'dl = hN1( 1- Nt/1<j dtrNrK) - 11. COM 37 Consider Lotka-Voltera the model competiiion for behrcen species. h,t/o The equation species is: for 1 COM - PR EM ED4 11. COM - PR EM Whichof Ihe lollorrtngequationsrepresentsthe equtlibrium conditions spectes1? for A) 0= 1- N1,/&- dzNlK Nr=Kj/o,, ' N,/qD 'A dN,,/dt = 0 C) D) all of ihe above ED4 11. ( MPRE M E PRE MED 411 .CO ! 38. Referto the flgure of a phasespace diaqramfor Lolka-Volterra compelilion. Which regionts an areaol the phasespacein which,if we start the systernthere,both specres and species wjJJ 1 2 decrease overtime. 4) c) D) 39. The situatjondepictedabovo in queslion.3gis one in which we expecl: A) stablecoexistence ofthe two spectes betweenthe speciesto be weakerthan competitio,withjn -B)^competjtion each speoes C) a lol of nrcheovedao ,qboth A and B, bul not C 40. Recaillhe beak sjzes of Darwin'sfinchesin the Galapagoslstands.He comoarecl their beak sizesof specieson istandswhere itrey tiveoaiorie lwiitrouil"v .i#Tr"n"") 'i;i;ilil";;il" ro rsrands where rhev rrved togelherwith other finctrspecies. ,n"v r,vedto^S:I:lttfgll,beaks were ..--whererhey ,ivedalone. ^j morestmttar sizethan In 8)less siflrlarIn srzethan ur rne samestzeas D) more brighflycoloredwith ye ow and blackstripes 41. Whichol th-e-tollowing malorreservorr ,s a for nikogen globally? rne ocean 3 i t,]llne atmosphere C) freshwater lakes D) rocks and sediments 42. ln orde( la cycle elementsthaough different the compartments ofthe biosphere. ehergyis required.Which ofthe followin. lransterselementsfton high elergycompounds to ro* 4,1photosynthesis"n"rn, "o'noo.lrlot3jesses \ q) respiration C) methanogenesis D) assimjlatory njtrogeD reduclion 43 In the . cycle,lhe transformations broughtabout by bacte.iaand other jn specjatized bacteriatu n,iirr"" .i-.i,t" oJ"ce,rjil pl^i"l ar" Il:r:':Tanisms0rke key mechanisms transfer of A) phosphorus B) carbon e) water D) nitrogen - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. - PR EME D4 ED4 11. COM weatheriogof bedrock,dissolving in 4 4. In the _ cycle,upliftingof continents, afe of and prr{pitating out otwater and sedimentation key mechanisms kansfer. tA)phosphorus B) carbon C) water D) nitrogen - PR EM ED4 11. COM - PR EM 45. Whichform of nitrogenis most usefulto plantsand is dissolvedin water and then taken up by the rootsof plants? 4dnitrates L.B)rnikites C) ammonia D) aminoacids 51. Charnov and Shaffer wrotea simplemodel investigate to whenthe perennial llfe historywould be favoredover the annual.They wrole tlvo equations,one for the population growthrate of an annualand lhe otherfor the population groMh rate of a perennial thenexamined groMhrate and underwhatcircumstances perennial's the would exceedthe annual'sgrowthrate. Which of the followingis the equationfor the perennial? lecturethe ,'s had subscripts, here they are omittedbecausethat is (ln but you 1oanswe4 the question lam asking A) ,t = soBa $)l'=Sr8r+5 COM - PR EM ED4 11. COM of 46. Beloware the magnitudes severalofthe majorfluxes among compartments of and the carboncycle,includingatmosphereoceanexchange,respiralion photosynthesis, and of methanogenesis, combustion fossilfuels. From your knowledge exchange? of their relativevalues,which ofthese is the ocean-atrnosphere A) 30,000GT per year B) 35 GT per yeaf C) 7 GT per year ' O)84 GT per year 50. Life hjstoryvariationamong speciesresultfrom kade-of{s,such that severa kaits tend1obe associated. Allthe following, whichone,arethoughtlobe except associated. Whichis the out of placetrait? A) longlife B_) early reproduction C) low effort per reproduclrve bout D) slow develooment COM - PR EM ED4 11. 47. Whjch of the followingis not a life historytrait? A) age of first reproduction .:'8, elaborate, largedecorative feathefs tail parity C) reproductive D) no. of offspringper adult COM - PR EM ED4 11. Which one is out of place 48. All of the followingspeciesexceptone are semelparous. in thislist? A) sockeyesalmon B) elephants plants C) tequila D) annualplants PRE MED 411 .CO MPRE M ED4 11. 49. Lack comparedcl]tch sizes in temperateand tropicalsongbirds.Choosethe pair that corectly fllls in the blanksto desc be the patternhe observedand the explanation birds had largerclutchesand ascdbedthis to their he proposed.He foundthat _ {oraging season. ab liry!QhavetimeeachdaydJIinglhe breeding 'A) temperale, more 'tl)temperale, less C)tropical, more less D) tropical, t3 AR^,^ re*(t$ CI '^LLEY'tl $W 52. The drawingto the left shows the leaf shapesof co-occ!rring speciesof passionflower vines at va.ious localities. Choosethe statementthat is relevantto this patternaccordingto the reseafch doneby Gilbert. .vVVCIq}=e0 oMa$Vqs 1]) F^R'A. oo'Ez l,w tpthF..,l) il{ +'+ A) The major enemyof these plants afe butterflies with poor chemical vision and excellent B) The majorenemy of these plantsare birdswithexcellent y{sron. C) The rnajorenemyof these with good Flants are butterflies D) Ihe relatedspeciesat each site have evolvedto resembleeach other withinthat site very closelyand to be differentfrcm the soeciesof oassionflowervines at other sites. - PR E OM 1.C D41 - PR EME COM 11. - PR EME D4 COM 11. - PR EME D4 ED4 11. COM 5 3. CgQVolution occur when _ may Althere is selectjooon traits by bjoGgicalagents gt lhere js selectionon traits by physicalagents nol C) selectionacls on kaits of one soeciesbLrt on the other D) iwo specieslive in separatelocations 11. COM - PR EM feed on the cikus family as well as the carrotfamily? 54. Why do swalloMailbutterflies A) ihe leaveshale similartextures nectaries B) the leaveshave similarextrafloral .c) 'I)) the flowersare almostidenlical contain loxicturanocounaflns the .eaves simrlar ED4 55. Which of the followingis a trophicmutualism? Acacias A) Pseudomytmex slingingants and Bullhorn BJ specialized scalo insectsand ponderosapines and plants 6 Mycorhizzae D) Yucca plants and Yucca moihs (Iogeticura) - PR EM COM 11. ED4 COM - PR EM E dd 1j ! Ec 0 3 L0;E r! ,: u;! 03 uA - PR EM ED4 11. i COM YC o - PR EM ;-ss= COM KEY q Host ip.cializ6tion ED4 11. )<Matins on hott MPRE M VPollinator .- EBg-liyins in tlower .: Lo.. ofecs-layin8 PRE MED 411 .CO 55. Referto the phylogeny(above)ofthe groupto which lhe Yucca moth (fegeticula) ihat mediate interaction the between plantand its the be ongsand rote whenthe traits po linator wholelineage of haveevolved. Whichofthe lolJowing traitsare ancestralin l5 a)25v" c) 12.sv" 58. What is Red Oueen hypothesis? in A) The mainadvantage sex is to slay aheadof stochastic of changes the abiotic environmenl B) The main advantageof sex is to separatefunctionot largegametesfrom funotionof small gametes C) The main advantageof sex is to prodgcedecorativemales AThe main advanlageot sex is to stay ahead of enemy palhogens:new of cdmbinalions genesprovidea movingtargetfor the evolutionby pathogensof vrrulence ED4 -ni! gameteformationand the formationof zygoteswiih 57 Sexualreproduclion(meiosis, two differentparents)leadsto a _ loss in amount of geneticmaterialpassedfrom parentlo offspringcomparedto asexualreproduction, known as the cost of meiosis. 'A) 50o/" D) 0% 11. gE betweenthe the moth and thus cannotbe interpreled a direct resultofthe interaction as Yuccapladlaod the moththatpollinates it? A) tvlatino the host on B) Hostspecialization C) Pollrnation 6' Bothand A and B wasps that mate with their sjblings,the sex ratio is 59. In tlg wasps, as in many parasitic no.mallyskewed to females. Once rnated,the femalesleave home and arriveai a new = fig to begintheir own families. Therethey decide how many male (unfertilized = haploid)and how many female (fertilized diploid)eggs to lay. How does the numberof othermothels who are layingeggs in the new fig affecther decision? she tends to lay more femaleeggs than A) lf she fnds many otherfoundresses, she would otherwise. 'Blif she flnds many otherfoundresses, she tends to lay more male eggs than she would otheNvise. she lays 50% male eggs and 50% fernale C) lf she finds no otherfoundresses, eggs. male eggs and 10%female D) lf she finds no other foundresses, she lays 900/o eggs. ofien choosea mated male with a 60. ln red-wioged blackbkds,_ good territoryratherthan an unmatedmale with a poorertenitory.This resultsin (choose pairthatbeslflllsin bothblanks). the rat somepointin the season. rAt femaleswho alllve early in the season,polygyny B) femaleswho arriveearly in the season,promisclity C) femaleswho anive late in the season,polygyny D) femaleswho arrivolate in lhe season,polyandry t6 ...
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This document was uploaded on 10/27/2011 for the course BIL 235 at University of Miami.

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