B235Hor F08 T1 T2 noAns

B235Hor F08 T1 T2 noAns - - PR E OM 1.C D41 - PR EME BtL235...

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Unformatted text preview: - PR E OM 1.C D41 - PR EME BtL235 Dr. Horvitz 11. COM E xanrI F atl 2008 October 7.2008 COM - PR EME D4 11. COM - PR EME D4 lnstructions: . Write you/ name and lO numberon the answersheet . Bubble the corresponding in MARKTHE FORMNUMBER. circles. . Sign the honor code and bubblein permission post your score. to . Choosethe one best answerfor each questionand bubblein the CorresPonding circle. . When you are done bringyoLrr exam to the TA or to me. Haveyour lD readyto check. . You maytakethe examquestions sheetonly home! Turnin the answer ED4 11. '1 Carbonis more readilyavailable freshwateraquaticplantsthan to . lo plantsbecause terrestrial ED4 11. COM - PR EM while the atmosphere only 0.03% is A) fresh \'6ter is 3-6% c€rbon-dioxide B) on land,when lhe slomataare open,the mte of lrater loss through hansoiration lower lhan lhe rate of uptakeof carbondioxide is in is at C) carbon-dioxide replenished night by respiration water but not on land from bicarbonate ions D) dissolvedcarboniioxide is readilyreplenished COM - PR EM in systems. as 2. The lolalamount lightdecreases depihincreases aquatic of The spectralcomposition lightalso changeswith depth.Which colorof light of in orecominates deeDer water? - PR EM ED4 11. A)violet B)orange C)green ul olowrl 11. COM and releaseinto the 3- Whv are there now strictcontrols over the manufacture atmosphere CFCs (chlorofluorocarbons)? of PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 A) CFCSreacl with ultraviolet lightto form ozone,a particularly toxic component of urbansmog. /8)CFCs destroyozonein the upperatmosphere, permitting greaterpenetration of hanntulultraviolet radiation. resulting a in C) CFCs absorbvisiblelightenteringthe earlh'supperatmosphere, phenomenon knownas "globalcooling." D) CFCs are extremely and cause severerespiratory toxicto mostorganisms problems humans. in 4- Thereare 56 species breeding of birdsin Greenland, in the stateof New 105 York,and 469 in Guatemala. Approximately manydo you thinkthereare in how gradienls diversity? (HINT: Colombia, basedon the knownlalitudinal of Colombia is closertothe equator thanGuatemala). A) 40 B) 400 c) 140 D) None of the abovewould be consistent with what is knoMr aboutlalitudinal gradientsin diversity. 5. Accordingto niche theoryof competition, numberof coexisting the species within a community can be increasedin a varietyof ways. Whichof these in involvesreduction nichebreadthand has been proposedas a biotjccairseof higherdiversityin the tropics? A) increasedtotal nichespace 8) increased nicheoverlap :. C) increasedspecialization D) all of the above - 6. Giventhe predictions the MacArthur-Wilson of equilibrium theoryof island biogeography, whichofthe followingislandswould be epected to have lhe mosl species? far ' A) a largeisland fromthe mainland B) a largeisland closeto the mainland C) a smallisland fromthe mainland far g) a smallisl€nd closeto the mainland 7- When a humanindustryhas depleteda biological resource, suchas the regionalpopulatonof a particular kind of fish,what has been the typical (HINT: recallthe historyof explotationof different responseof the industry? whalespecies) Al tumingto an altemativeresource, whichis in turn depleted B) tumingto an altemativeresource, with care taken not to depletethe but alternative resource C) cessationof the activityuntil the resourcerecovers D) aclive intervenlion assistin the recoveryofthe resource to - PR E COM - PR EME D41 1.C OM - - PR EME D4 11. . 8. What levelof "shiftingagriculture" kopical forestareasis considered in sustainable? - PR EME D4 11. COM A) cutting10-20%of the foresteach year.wiih perhaps20-6C%undercullivation at any tjme 8) cutting5-10%of the foresteach year, with perhaps'10-30% undercultivation at any tjme 'C) cutting1-2%of the foresteach year,with perhaps2-6% undercultivation at any time D) None of lhe abovelevelsof exploitation sustainable. are 11. COM '9. In the sea otter-ufchin-kelp systemof the Pacifc, why does the overhuntrng of sea otterseventuallyhave negativeimpactson sea lionsand killerwhales? - PR EM ED4 11. COM - PR EM ED4 A) becausesea ottersconsumelargequantiiiesof kelp directiyand killerwhales large quantiljes kelp directly ol _consume populatrons B)because. the absence sea otters. in Increase urcirn ol urchin and consumption kelp increases, of kelp is .educed.so the animalsthat feed on it are reducedand the animalsthat feed on those animalsare reduced C) becauseof eutrophication causedby excessive amountsof kelp produclon D) becausesea oftersare too down predators that consumekillerwhales COM 10. lf you were askedto providea "ballpark" estimateof the increasein concenlratonof atmospheric carbondioxidefrom 1850to 2000,whichof the followingwould you choose? - PR EM ED4 11. A) 1 ppm B ) 1 0p p m C) 100ppm D) 1000ppm 11. COM 11. Exolicspecies are PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 A) speciesthat are morecolorfulthan nativespecies. 8) speciesthat are at the top of the food web. P) speciesthat are detritivores. D) speoes that have evolvedin one part of the world and beentmnsportedby humansto anotherpari of the world '12.A study focusrng interactions on amongpopulations severalspeciesin one of locatjonbelongsto the area of _ ecology. A) population ,B) community C) ecosystem D) physrological 13. The ecological role of _ ts that they captureener!y fromsunlightand convertit into a chemical form that can be usedand assimilated livingthings_ by rAipiants B)fungi C) bactena D) animals '14.An ecological experiment was set up by Marquis Whelan a whiteoak and in lorest:iarge cageswere constructed that excludedvertebrates allowed but inseclsaccess. Aftera periodof time.the numberof caterpillars and the amount of leaf damagewere counledand measured insidethe cagesas well as outside the cages.ln lhis experimenl. thgy found 70% more insectsand 22-35%moredamageoccurredinside the cages lhanoulside cages the B) 70% more insectsand 22-35yomotedamageoccurredoutside the cages than insidethe cages c) tbatbirdsconsume foliage oaks the of D) that habilatfragmenLation causebjrd populatjoDs decline will Io of rs )15- Whrch the followng false? A) Ecological systemsare physicalentities. 8) Ecological systemsexist in dynamicsteadystates'C)Themaintenanceoflivingsystemsgeneratesenergyratherthanexpendingit. D) Ecologrcal syslemsundergoevojutjonary clrangethroughtjme. - PR E OM 1.C D41 - PR EME COM humans musttake inleraction lhe biosphere' with 1 6.To develop sustainable a derivedfromthe study of ecology? into accountwhich pdncjpJes COM - PR EME D4 11. COM - PR EME D4 11. A) Short term returnsare indic€tveof long termreturns;thus any strategythat maximizesshortterm retumswill work well. in use developed one part of the planetcan be of B) The technology resource practicein one area is also kansferredreadilyto other areas:what is susiainable in sustainable any oiherarea. (likegrazinganimals,fisheries resources of 9J The intensity use of renew€ble ability shouldbe limitedonly by our technologic2l ;nd Iumberc.n be harvested) they will all g.ow back no matter sincethey are biological to capturethe resource: how intenselvthev are harvested. must be less than o'equal /6t Tne rareot use of both biotrcand ab'olicresources of lothe rate of restoration a resource. A) That to survivelhe dry season,the mothsmigrateto the moistslopesto inhospitable climate ofthe lowlandsescape seasonally the ,B) That to escapethe rainson the slopesof the volcano,lhe mothsof the moist at slopesmigratelo the dry lowlandhabitats the heighlof the dry season. C) Thatto conservethe biodiversily his sjte (lhe tropicaldry torest).he will also al geed to conservenaturalhabilaton lhe moistslopesofthe volcano. 'D)A and C, but not 8. 21. In the film you sawon restoration oftropical dry forests,you were introdu@d €lalionship betweenstingingants and Acac,i? trees.Which of the to a mutualistic followingare benefilsthat the ants get trom the planis? A) housingr swollenhollowthornsis wherethey nest the B) sugaryfood: neciarfrom specialglandslocatedat the base of leaflets proteins, vitaminsand oils: beltianbodiesproducedat C) solidfood contaihing lhe lips of the leaflets 'D; att of the above 11. COM effect the greenhouse the abilityof treesto lransportwateafrom rools to c€nopy of bioaccumulation tat solubletoxinsalongthe food chain than in dry climates in higherstability ofair temperature moistclimates ED4 A) B) -C) D) - PR EM ED4 11. of lhe to 17. The factthatit takesa lol ol enerqy change temperaiure waler resultsin 20. Whatdid Dan Janzen leamfromhrsUV lighttrapaboutthe mothsin the lowiandtropicaldry fofest and the molhs on the moisl slopesof the adjacent volcano? ED4 11. COM - PR EM processes occur 18. MOSTliving A)atpH< 6. B) at pH >S. of c) at temperatures the liquidphaseof i46terand greaterthan 45"C. but less than 100"C. of fi; at temperatures the liquidphaseof water,but less than 45"C. COM - PR EM billiontonsof carbonto the atmosphere 19. Humansnow add aboutcan be absorbedby the by annually.principally bumingof fossilfuels. oceansannually.(Choosethe pair that lills in both blankscorrectly) PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. A) 7and7 B ) 1 5 a n d0 Q) 2.4 and 1.2 D\.7 and2.4 jaws, now extinct.were probablythe 22. The gomphotheres with la.ge powertul those most important_ of manytrees in the tropicaldry forest,particularly whose fruits have hard outer shells.accoding to Dan Janzen'stheory. who appearto play the same Contempo€rymembersof the community once did for lhese treesare -. ecological role as ihe gomphotheres (Choosethe pair that correctly in both blanks). fllls A) seed dispersers: toucans €i\eed disoersersihorses C) bioticdefenders; acaciaants D) seed predalorsiagoutis 23. Use Preston'sequationthat is basedon the idea that some specieswhich existin a communityare so rare that they don't turn up in a sample(they are are hiddenbeyondthe veil line)and that speciesabundances lognormally for distributed. Calculatethe total numberof speciesin a community which your curve is = deviationof the speclesabundance sampledata were: the standard = of the of withlhe modal abundance 50. (HINT: number 4.2,the number species speclesin the community= the numberof speciesobseNedin the mode ! Recallthat the squareroot of 2|r = 2.5 and the squareroot (2 r ' variance). provided (Withthe information deviaiion). squarercot of the variance= standard to in the hint, you reallydon't needa calculator answerlhis question.See answer choiceson the nexl page.) - PR E OM 1.C D41 - PR EME COM - PR EME D4 11. (answef choices Question for 23) COM A) 349 specles 8J 408 species C) 525 species O) 1,050 species COM - PR EME D4 11. '24. Following the table ofspecjes abundances is foriwo communities, community'1and 2. Althoughboth communilies have 5 species,accordingto the Shannon-Wea\,er indexof diversity, they ditferin diversiiy.According this H, to concept,which of theseis morediverse?(HlNTrYou do not need a c€lculator to answer you thisquestiont cananswer jusl by knowing concept H). it the of ED4 11. Species ABCDErcanop!. Communityl 0.20 0.20 0.20 Community2 0.70 .20 .05 - PR EM 0.20 0.03 0.20 0.02 - PR EM ED4 11. COM A) Community 1 B)Community 2 C) Neitherone, they havethe samediversity O) Not enoughdata to answerthe queslion ED4 11. COM 25- Walter Carson,anan 8 yr experiment, testedwfietheran herbivorous chrysomelid has an influence the diversity on beetlethat prefersgoldenrods of the plant community a field.He foundthat removing beetlefrom the system in the lo caused planicommunity lhe diversily _ COM - PR EM A) decrease B) increase C) remainthe same ED4 11. for 26. Which of the following NOT offeredas an hypothesis why the tropics is are morediversethan the temperate zone? PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM A) Moretimertroprcal condibons older. are 8) Lowerextinctionratescoupledwith higherspeciaiion ratesin the tropics. C) l\4ore variationbetweenseasonsofthe year rn the tropics. D) Higherbeta diversity the tropics. in 2 7. Whatls canopy fogging? problemc€usedby burningfossil fuels. A) An environmental 8) A lechniqueto estimatepopulation sizesof butterflies the tropics. in C) A techniqueto samplethe soil arthropods ofthe rainforest. O) A technique sample insect to that the community livesIn the topsof kees rn ihe tropics. 28. Whichof the followingis NOT lrue aboutlightin the tropicalrainforest? A) ll is abundantand ubiquitous lhe bottomot the forest. at B) lt is abundantat the top of the Ioresl C)Onevvaythattreescangetiightrsbyusingtreefallgapsforiuvenile recruttment. D) One way that treescan get lightis by growingtall hst enoughto reach the 29. Tropic€lwetforesttree ages are readilydetermined extracting cylindrical by a core ofwood from the trunk and countingthe tree ngs. A) TRUE B) FALSE rn 30. All of the followingare currentresearchprolects my lab exceptone. Which one is notthe kindofworkdonein my lab, ecologyof clonalprcpagules A) Demographic and experimenlal comparative vs. seedlings a neotropical of herb B) Demographic, responseof specialist and ecological and evolulionary generalist rolledleaf herbivores novelexolichost plantsin the to Zingiberales: and labexperiments freld C) Demographic impactof two insects(bioconlrol agents)on an invasive exotictree in the Everglades ' D) Community bats in ecologyand echolocationbehaviorof nectaf-feeding the SonoranDesertA) speciesihat haveevolvedin one part ofthe wodd and been trensported humansto anotherpart of the world by - PR EME D41 1.C OM - PR E -| BrL 35 2 Dr.Horvilz il 3 Which of the followingbiomesis at one ofthe three cornersof Whittaker's tnangle? 11. COM Examll Fall2008 November 2008 6. - PR EME D4 A)tropical rainforest B) subtropic.ldesert C) tundra D) all of lhe above COM Instructions: . Write your name and lO number on the answersheet . Bubble the mnesponding in MARKTIIE FORMNUMBER. circles. . Sign the honor code and bubblein permissionto post your score. . Choosethe one best answerfoaeach questionand bubblein the mresponding circle. . When you aaedone bring your exam to the TA or lo me. . Have your lD readyto check. . THE LASTPAGEOF THISEXAI\,I FORA WRITE-IN IS ANSWER . You may take the rest exam questionshome! . Tum in the answersheetand the LAST PAGE OF THE EXAM,BE SURE YOURNAI\,IE AND ID NUMEER AREONII. COM - PR EME D4 11. 4. You are dfopped into an area somewhere planetearth. You do not know on wheaeyou have been taken. When you look aroundyou, you view the followingl a lhree-layered forestcomprised very tall emergentsthat do not form a of covea, sonrewhat continuous a shortercontinLlous canopyand a set ot moreor lessdiamond-shaped understory treesthat grow underthe canopy,toucansare in the trees,tapirsare bathingin the river,leaf-cutter ants are scurryingalong trails withsmallbitsof leaves theirmandibles. in Wheremightyou be? ED4 11. - A)Central Americ.an rainforest B) O.egon,ihe temperaterainforesl C)Sweden, the borealforesl D) the Afican savanna COM - PR EM 1. BothWalterand Whittakerdevelopedclimate-based schemesfor classifying biomes. One of them focusedon trackingthe relationship betweenmonthly precipitation monthlytemperature and throughoutthe year and the other focusedon _. 11. , 5. Where is the Meditenanean-type (also knownas the woodland-shrubland) foundin addition the areassurrounding Mediteranean to biome the sea? ED4 A) ocean currentsas they modifytemperature B) the angleof the sun's rays at each latiiude - C) mean annualprecipitation and tempeEture in differentlocations D) the relativeamountof land and water in the differenthemispheres COM - PR EM - A) Colombiaand other partsof northernSouth America B) Equatorial Africa C) Northeastern Australia D) Coastalcalifornia ED4 Y ro o I i:- ..'-- -'r. - PR EM ED4 - PR EM .A. co C ! \ :9 *._6-.^ i._6"! ^-*,"iY,',,... ,*,,- h.o.( FMAMI IASONDI llionih , 6. Choosethe pair thai correctlymatchesan animalwith its biome. ao or-- COM 'mFrec, 11. aEnF ,, -^ _.._:_ ----.'. o o o .r-ia"-,p-* l:1" F 19 ;*"**.,-,r-,i P -20 11. "t iro a E J FMAM' J A5OND Mdrh B I FM^MIt^5OND COM 11. ED4 - PR EM COM 11. ED4 MPRE M .CO 411 MED Buftalo;temperaleseasonalforest Reindeer;tundra N4oose; tundra Camel;tropicalseasonalforcst J Mod.h C " 2. Referto lhe dlagramabove- In one of lhese biomes.high temleraiure coupledwith low precipitation limitsplant gro\athfor a few monthsofthe year. Which one is it (A, I or C)? PRE A) B) . C) D) 7- Choosethe sequencethat correctlyplacesthe geologiceras on a time line startingwith the oldestand endingwith most recent.HINT:try lo remember which one left very fe\r fossilsand whai it was followedby. Paleozoic, Precambrian 4) Cenozolc,N4esozoic, - B) Precambrian, Paleozoic, I/esozoic,Cenozoic C) Mesozoic,Precambrian. Paleozoic, Cenozoic D) Paleozojc, Mesozoic,Cenozoic,Precambrian - PR E OM 1.C D41 - PR EME 11. COM 65 8 . The massiveextinction rnillionyears ago at the CretaceoLrs-Tertiary boundary_. A) 10% B) 35% c) so% - D) 80% - PR EME D4 11. COM - PR EME D4 - A) was causedby an asteroidhittingthe earth in the sha,lowseas off the coast of the Yucatan of B) was the prjncipalcauseof the extinction the woollymammothsin North Amenca C) providedthe opportunity dinosaurswho survivedit to expandinto for empty nichesthat it caused O) two of the above.both A and C " 11. One globaleffortby humansto slowdown the currentcrisisof exlinction involvesidentifying global diversityhot spots. These hotspotsoccupyabout 1.4%of the earth'stotal land area and containapproximately _ of the terrestrial vertebrates. COM , L Which ot the foliowingcorrect,ydescribessome of the patternsor consequences continental of drift? COM - PR EM ED4 11. COM - PR EM ED4 11. - A) Barriersto dispersalhave changedduringthe historyof life on earth as the land massesaller their positionsrelativeto one another. intoPangaea B)originally the landmasses we€ separate;when united all they about 60 millionyears ago, humanscrossedthe Beringstraitsand killedthe woolly mammoths. zone has been unitedwith the Nearcticzone throughout the C) The Neotropical historyof life on earthithe massivecontinentthat they fonhed togetherwas known as Americus. the of 9, Althoughchangesin the distribution land masseshave influenced globalcirculation water,this has NOT causedaccompanying ot changesin the exlent to which clinate differsbetweenpolarand equatorialregions- ED4 11. condor 10.The California PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM of in x) declined a wildpopulation 20-30individuals I980 and thenwent to erttirely extinctdue to lead poisoningfrom hunters slugs left in deer c€rcasses which was lheir primarysourceof food in the wild ' B) was broughtinto a captivebreedingprogramin LA and San Diego; zooinio the wild and lhe programappearsto be raisedbirds have been re-inkoduced woftrng C) has a hard time layingeggs in captivityand the chicksare rarelysuccessfully reared D) needs largetracksof old-groMh Douglasllr forestsas habitatand its is conservation a sourceof conflictwith the timber industry 12. Which of the followingbas been proposedas a possibleexplanation the for extinction the megafauna of duringthe Pleistocene the Americas? in A) the overkillhypothesis B) the climatechangehypothesis - C) both A and B D) noneof the above (largenightless 13. [,,loas creaturesstandingover 10 feet tall and weighingover 500 pounds)thrivedin New Zealandover a millennium ago. However.when Polynesian settlers(the Mao.i)anived the numberof lroas droppedand within centuriesthe Moas underwent massivelocalextinction. a The massiveextinction wasoue to: A) Hunting the Maoripeople by B) Deforestation people(destroying Moa's habitats) the by peopleas they expandthek settlemenls(rals are C) Rats accampanying predatorsof ground-living birds nests) - D) All of the above 14. Which two present-day continents that originallysupportedmegafaunadid not experjence their full exlinctionin the Pleistocene, most likelybecauseihe animalsthere co-evolved with humans?(pickthe correctpair) A) Antarcticaand Eurooe B) Eurooe and Asia C) Africaand Asia D) Africaand EuroDe 15. What group of peoplewas the main causeof the extinctionof '113 the land of bird sDecies Hendersonlslandin the Pacificlslands? on Europeansettlers B ) Biologists c) Polynesianselllers D ) None of lhe above - PR E OM 1.C D41 - PR EME 11. COM 21. All of the followingare categories conservation of status applicable species to found on the IUCN red list: vulnerable, endangered.endange.edand critic€lly extinctin the wild. - PR EME D4 1 6. Pick out the true statementabout the SumatranrhinocerosA) The new approachin the plan to save jt from extinctionis to create intermediate size betweenthe zoo and the wild rcserveby sanctuaries in fencingin large carefullymonitoredsectionsof iainfgrest. B) Reoenthuntingis principally motivatedby its valLte a sourceof meat. as C) lts currentconservation statusis listedas "extinct." D) Westernpharmaceutical @mpanieshave demonstrated cancer-qrring properties the horn of the Sumatranrhinos;they pay poachershigh in pricesfor the horns. ^ n; tr,.re 8) False COM - - PR EME D4 11. 22. The population densityof a particular insectat a particularpark was per determinedto be 1,000iodividuals hectarein the summerof 2006, 1,200 per individuals hectarein the summerof 2007,and 1,440individuals hectare per in the summerof2008. Basedon these population size eslirnates, what is your per estimate /., the annual capita of gfoMh? rateofgeometric 17. Which type of specjesis the most likelyto go extinctwhen there is (HINT: 'leastadapted"are gene€lists and "most ecological devaslation? adapted"are specialists) ED4 11. COM A) 0.9 8) 1.0 c) 1.1 . D)1.2 - PR EM A) least mobile,leastadapted B) most mobile,least adapted - C) least mobile,most adapted O) most rnobile,most adapted 11. COM ' 23. ln the past 300 years.the human population the planeteadh has on increasedfrom _to as we have improvedthe human condition _ (the (major medical technologically industrial revolution) a^d rnedically advances). Choosethe pair of flguresthat best fiils in these blanks ED4 18. Which is typic€llytrue of endangered species? - PR EM A) 100 million; -13 billion 12 - B) 300 million;6 -7 billion C) 10 million; billion 1-2 D) 500/Tjllion;2-4 billion 11. COM A) They are otteninferiorand doomed. B) They are old and will naturallydie out. - C) They are often new, young,healthyspeciesaffectedby human influence. D) They are the most difficultto photograph. ED4 rNo bx. No individuals bornto x, age surviving agex (yrs) to aqe x individlals 0 1000 0 17000 25000 32502 450 1 50 11. ED4 owl prairiedog beetle emu - PR EM A) B) C) - D) COM - PR EM . 19. Afterthe anival of man to a virginenvironment which species,accordinglo Wilson,would be the firstto go extinct? ED4 11. COM r 20. Which of the tollowingwere NOT represented amongthe speciesadoptedby the classchosenfrom the IUCN red hsl? PRE MED 411 .CO MPRE M ED4 11. COM - PR EM A)spiders B) primates - C) fiowering{i.e., not cone-bearing) kees of tropjcallowlandrainforests O)mushrooms .- 24. Refer to the cohortlife table abovefor a fictitiouspopulaton of a fictitious animal,three-eyedsillies.Calculatethe per generationpopulaliongroMh rate, is also calledthe net reproductive rate, Roand decideif the population (HINT:Calcuiate,t) _. A) stable B) decreasing C) Increasing D) can not tell. need more data I - PR E OM 1.C D41 - PR EME COM - PR EME D4 11. ) 2 5. Referto the life table in question24. What is the life expectancy (eo)of newbornlhree-eyedsillies? - PR EME D4 11. COM A) 2.0yrs B) 0.5yrs C) 1.6yrs D) 2.5yrs COM of population growth 26. Which thefollowing a model density is of independent in continuous time? 11. COM - PR EM ED4 11. 8) n(t+t) = an(t). ^tN(0). C) N(t)= D) dN/dt= tN(1-N/K). COM - PR EM ED4 ?' .! ,r -li i:;Iaffi1,/ 11. 0llt{ i L@ COM - PR EM ED4 -A B C 27. Refe. lo lhe graphsabove.Which one depictsthe dynamicsof a population uDdergoing densitydependentgroMh in continuous time? 11. factor? 28. Which of the followingis not a density-dependent PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 A) limitedsuppliesof food B) limitedsuppliesof placesto live parasiles,and diseases C) efects of predators. - D) effectsof temperatu.e, precipitation, events and calastrophic projectionmatrixmodel for the 29. A sensitivity analysisof a population population gro\rlh of the endangered loggerhead turtle showedthat the popujation groldh rate was mosl sensilivelo the sLlrvival of_ and the managemenlrccommenclation to '.--_. was (choose the pair that correctly in both blanks) fills A) baby turtleson the beach,focus allconservationeffortson protectingnests from predatorc - B)yoLrng adults and pre-adults, focus conservation effortson passihglegislalion to insurelhat shrimpboals jnstallTED's C) baby turtlesreturnjngto the sea, focus all conservation etfortson gettingthe hatchlings returnto the sea to D) none of the above ...
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