quiz: homologous & analogous structures and …€¦ · 2) complete each statement with the...

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QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND EVOLUTIONARY TREES PERIOD: NAME: DATE: Homologous & Analogous Structures 1) Please match each structure(s) with the term on the right that BEST describes it. (You may use each term more than once.) A) Dorsal (Back) Fin in a Shark & Dolphin ________ B) “Eyes” in Blind Cave Fish ________ C) Butterfly Wing & Dragonfly Wing ________ D) “Humerus” Bone in a Whale Flipper & in a Human Arm _______ a. Adaptive Structures b. Analogous Structures c. Vestigial Structures d. Homologous Structures e. Phylogenetic Structures 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A) Analogous structures are evidence that __________. B) Homologous structures are evidence that ________. C) Vestigial structures are evidence that __________. a. Share a recent common ancestor b. Share a trait that is no longer useful to one species c. Share the same or a similar environment d. Share similar traits by coincidence 3) The trilobite fossils in the diagram below have been organized into a branch on an evolutionary tree based on homologous structures. Which of the following is true? a. Trilobite A should be placed in its own branch, with C as its most recent ancestor. b. Trilobite B should be placed between C & D. c. Trilobite C should be placed in its own branch, with D as its most recent ancestor. d. Trilobite B should be placed in its own branch, with D as its most recent ancestor. e. No changes to the branch are needed. 4) Whales live in the ocean. They do not have legs. However, they do have a pelvis with small leg bones attached to it. The leg bones are so small that they are NOT visible on the outside of the whale. This is evidence that: a. Whales are still evolving b. Whales are not well-adapted to live in the ocean c. Whales evolved from larger fish d. Whales evolved from animals that once lived on land. e. Whales do not have homologous structures

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Page 1: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

QUIZ:HOMOLOGOUS&ANALOGOUSSTRUCTURESANDEVOLUTIONARYTREESPERIOD:

NAME: DATE:

Homologous&AnalogousStructures

1)Pleasematcheachstructure(s)withthetermontherightthatBESTdescribesit.(Youmayuseeachtermmorethanonce.)

A) Dorsal(Back)FininaShark&Dolphin________

B) “Eyes”inBlindCaveFish________

C) ButterflyWing&DragonflyWing________

D) “Humerus”BoneinaWhaleFlipper&inaHumanArm_______

a. AdaptiveStructuresb. AnalogousStructuresc. VestigialStructuresd. HomologousStructurese. PhylogeneticStructures

2)CompleteeachstatementwiththeBESTphrasefromthelisttotheright.(Youmayusethesamephrasemorethanonce.)

A) Analogousstructuresareevidencethat__________.

B) Homologousstructuresareevidencethat________.

C) Vestigialstructuresareevidencethat__________.

a. Sharearecentcommonancestorb. Shareatraitthatisnolongerusefultoonespeciesc. Sharethesameorasimilarenvironmentd. Sharesimilartraitsbycoincidence

3)Thetrilobitefossilsinthediagrambelowhavebeenorganizedintoabranchonanevolutionarytreebasedonhomologousstructures.Whichofthefollowingistrue?

a. TrilobiteAshouldbeplacedinitsownbranch,withCasitsmostrecentancestor.

b. TrilobiteBshouldbeplacedbetweenC&D.c. TrilobiteCshouldbeplacedinitsownbranch,withDas

itsmostrecentancestor.d. TrilobiteBshouldbeplacedinitsownbranch,withDas

itsmostrecentancestor.e. Nochangestothebranchareneeded.

4) Whalesliveintheocean.Theydonothavelegs.However,theydohaveapelviswithsmalllegbonesattachedtoit.ThelegbonesaresosmallthattheyareNOTvisibleontheoutsideofthewhale.Thisisevidencethat:

a. Whalesarestillevolvingb. Whalesarenotwell-adaptedtoliveintheoceanc. Whalesevolvedfromlargerfishd. Whalesevolvedfromanimalsthatoncelivedonland.e. Whalesdonothavehomologousstructures

Page 2: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

5)ThediagramsbelowshowtwoPOSSIBLEwaysthatthe4chamberedheartmayhaveevolved.Pleaseexplainthedifferencebetweenthesetwooptions.(Besuretousethewords“homologous”and“analogous”inyouranswer.)

EVOLUTIONARYTREES

PleaseusetheevolutionarytreeaboutdifferentmonsterspeciesONTHENEXTPAGEtohelpyouanswerthequestionsbelow.

6)PleasedrawastarontheevolutionarytreetoshowwherethecommonancestorofaSnorlaxandaBlastoisewouldbe.

7) Accordingtothetree,whichmonsterspeciesdivergedfromtheothersearliestintime?_________________________

8) Accordingtothetree,whattraitsdoesBlastoisehave?(CircleALLthatapply.)a. Feathersb. Wingsc. TailFired. Firee. Shellf. Tailg. Limbs

9) Accordingtothetree,whattraitsdoSquirtlesandCharmeleonsshare?(CircleALLthatapply.)a. Feathersb. Wingsc. TailFired. Firee. Shellf. Tailg. Limbs

Page 3: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

10) Whichpairofpokemonaremorecloselyrelated?(Pleasecircleapair.)

Charmander&Charmeleon OR Charmander&Charizard?

Howdoyouknow?________________________________________________________________________________________________________________________________________________________________________________________________

Page 4: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

11) ThediagrambelowshowsTWOevolutionarytrees,eachrepresentingaDIFFERENTpatternofevolution.

a. PleasefillintheblankaboveeachtreewiththeNAMEofthepatternofevolution.

___________________________________________________________________

a. Pleasesummarizethedifferencebetweenthesetwopatternsofevolutionin1-2sentences:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

QUIZ:ADAPTATIONS&SPECIATION PERIOD:NAME: DATE:

Pressures&Adaptations

1) Cactusplantstypicallygrowindryareas,likethesouthwest

UnitedStates.Basedonthephotototheright,pleaseidentifyTWODIFFERENTenvironmentalpressuresaffectingtheseplants,aswellasanadaptationtoeachpressure.

EnvironmentalPressure: RelatedAdaptation:

Page 5: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

Pleaseusethefollowinginformationtohelpyouanswer#3and#4:InCalifornia,thereisaspeciesofsalamandercalledtheCaliforniaRedSalamander.Itisbrightredandispoisonoustoitspredators.TheEnsatinasalamanderlivesinthesameareaandisevolvingtohavethesameredcolor.

3) TheEnsatinaismostlikelyevolvinginthiswaybecause:a. Itisalsopoisonousb. Itwillblendintoitsenvironmentbetterc. Itwillhelpitstaywarmerd. ItwantstomatewiththeCaliforniaRedsalamandere. Itspredatorsthinkitispoisonous

4) ThisstrategyisBESTdescribedas:a. Adaptationb. Camouflagec. Competitiond. Mimicrye. Fitness

Pleaseusethefollowinginformationtohelpyouanswer#5and#6:Amedicine,penicillin,canbeusedtokillbacteria.Inthelab,youexpose1000bacteriacellstopenicillin.Itkills996ofthebacteriacells.Thefourbacteriacellsthatsurvivewereexposedtothepenicillinagain,butdidnotdie.

5)Whichofthefollowingstatementsistrue?

a.thebacteriathatsurvivedcouldresistpenicillinbeforetheywereexposedtoit

b.thebacteriathatsurvivedchangedthemselvestobeabletoresistpenicillin

c.thebacteriathatsurvivedreproducedfasterthantheotherbacteria

d.thebacteriathatsurvivedlearnedhowtoresistpenicillin

6)Whichofthefollowingstatementsistrue?

a. Overtime,thepercentageofhumansthatareresistanttopenicillinwillincreaseb. Overtime,thepercentageofbacteriathatareresistanttopenicillinwillincreasec. Overtime,thepercentageofbacteriathatareresistanttopenicillinwilldecreased. Overtime,thebacteriawillgoextincte. Overtime,thepenicillinwillbecomemoreeffective

7) Maleparrotshavefeathersthatarebrightcolors-likeredandyellow–eventhoughtheyaretypicallysurrounded

bygreenplants.Thismakesthemmorenoticeabletopredators!Basedonyourunderstandingofpressuresandadaptations,explainwhytheparrotsmighthavethesecolors.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Speciation

8) SpeciationisBESTdefinedas:a. Theprocessinwhichasinglespeciesbecomesmorediverseb. Theprocessinwhichasinglespeciesevolvesintomultiplespeciesc. Theprocessinwhichasinglespecieschangesgraduallyovertimed. Theprocessinwhichasinglespecieschangessuddenly&rapidlyovertimee. Theendingorextinctionofasinglespecies

Page 6: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

9) Whattwothingsmusthappentoapopulationforspeciationtooccur?

a. _________________________________________________________________________________________________AND

b. _________________________________________________________________________________________________________.

10) WhichofthefollowingisLEASTLIKELYtoresultinisolation?a. Aforestfireburnsanareainthemiddleofaforestb. Humansbuildaroadthroughanareaofwildernessc. Afloodcausesanewrivertoformthroughagrasslandd. Agroupofinsectsbeginsingingadifferentmatingsongfromtherestofthepopulatione. Birdsmigratefromnorthernareastosouthernareaseachseason

11) WhichofthefollowingisMOSTLYLIKELYtoresultinspeciation?a. Giraffesliveinanenvironmentwithtalltrees.Overtime,theyevolvetohavelongerandlongernecks.b. Sharksanddolphinsbothliveintheoceanandfacethesameenvironmentalpressures.Overtime,theyevolve

tohavethesamebodyshape.c. SomebirdsfromthemainlandofSouthAmericagetblowntoanislandbyastorm.Overtime,theyadaptto

thenewislandenvironment.d. HomosapiensandNeanderthalscompeteforsurvival.HomosapienssurviveandNeanderthalsgoextinct.e. Theclimategraduallygetswarmerandthegrasslandhabitatsexpand.Zebrasliveinthegrasslands.Over

time,thezebrapopulationgrowslarger.

12) WhichofthefollowingistheBESTevidencethattheEnsatinasalamandershaveNOTYETspeciated:a. Theorangeandspottedsalamandersshareallofthesametraits,otherthancolor.b. Theorangeandspottedsalamandershavesimilarbehaviors.c. Theorangeandspottedsalamandershavethesamenumberofchromosomes.d. Theorangeandspottedsalamandersbreedtogether.e. Noneoftheabove.TheorangeandspottedsalamandersHAVEspeciated.

13) Bacteriaaresimple,singledcelledorganisms.Theyreproducewhenonecelldividesitselfintotwonewcells.

TheylacksophisticatedmechanismsforrepairingtheirDNA,somutationsoccurfrequently.Eventhoughwethinkofbacteriaasorganismsthatmakeussick,MOSTspeciesofbacteriaareactuallyharmlesstohumans.

A) Whichofthefollowingfactsmakeitdifficulttostudyspeciationinbacteria?a. Bacteriaaresimpleorganisms.b. Bacteriareproducebydividinginhalf.c. MutationsoccurfrequentlyintheirDNAd. Somebacteriaareharmfultohumanse. Mostbacteriaareharmlesstohumans

B) ExplainyouranswertopartA:

_______________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________

Page 7: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

DARWIN’SOBSERVATIONS&INFLUENCES

1) Darwinobservedmanydifferentplant,animal,andfossilspeciesonhistravelsaroundtheworld.Hebasedmanyofhisconclusionsaboutevolutionontheseobservations.PleasematcheachofhisobservationswiththeconclusionthatitBESTsupports.(Hint:UseeachletteronlyONCE.)

a. ___________FinchesontheGalapagosIslands

b. ____________Largebirds(ostriches,emus,andrheas)ondifferentcontinents.

c. ____________Glyptodontfossil&modernarmadilloinSouthAmerica

d. ____________EarthquakeinChilethatcausedlandunderneaththeseatoliftupoutofthewater

a. Specieschangeovertime

b. Homologousstructuresareevidencethataspeciessharedarecentcommonancestor

c. Extinctionoccurswhenspeciescannotadapttorapidchangeinenvironmentalpressures

d. Speciesthatfacesimilarenvironmentalpressureswilldevelopanalogoustraits

3) Lamarckwasascientistwhosuggestedthatanimalschangeovertimebecausetheywanttobemoreperfectfortheirenvironment.WasthisideahelpfultoDarwin?

a. No,becausetheideawaswrong–thisisnothowevolutionhappens.b. No,becauseLamarckstoleDarwin’sidea.c. No,becauseother scientistsacceptedLamarck’s ideas, so itwasharder forDarwin toconvince themto

believesomethingdifferent.d. Yes,becauseLamarckrealizedtherewasaconnectionbetweenthecharacteristicsaspecieshasandits

environment.e. Yes,becauseLamarck’sideaswerecorrect,soDarwincouldbuildonthem.f. Yes,becauseallideasarevaluable,eveniftheyarewrong.

4) Malthuswasahistorian&economistwhowroteafamousessayaboutthefutureofhumansocietiescalled“Onthe

PrincipleofPopulation.”HowdidMalthus’sideasinfluenceDarwin?a. Darwinrealizedthathisideasaboutevolutiondidnotapplytohumansb. Darwinrealizedthatindividualswithinanyspeciesmustcompetetosurvivec. Darwinrealizedthatpopulationsofindividualsevolvedifferentlywhentheyareisolatedd. Darwinrealizedthatpopulationsofindividualschangeovertimetoadapttotheirenvironments.e. Noneoftheabove–becauseMalthuswasnotascientist,Darwindidnotaccepthisideas.

5) Darwinwasalsoinfluencedbyatypeofevolutionheobservedcalled“artificialselection.”ThisisBESTdefinedas:

a. Humanscausingaspeciestoevolvebybreedingfordesirabletraitsb. Humanspreventingaspeciesfromevolvingbybreedingfordesirabletraitsc. Humansinterferingwithnaturalevolutionbychangingtheenvironmentd. Aspeciesevolvingbyadaptingtopressuresinitsnaturalenvironmente. Aspeciesnotevolvingeventhoughtherearenewenvironmentalpressuresf. Aspeciesevolvingbybreedingwithanotherspecies

6) Theideaof“artificialselection”influencedDarwinbygivinghimanexampleof:

a. Howevolutiondoesnotalwaysoccurb. Howtwospeciescouldbreedtocauseevolutionc. Howhumaninterventionisnecessarytocauseevolutiond. Howaspeciescanchoosetobreedinawaythatwillimproveitselfe. Howoffspringaremorelikelytohavetraitsthataresimilartotheirparents

Page 8: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

NATURALSELECTION

Pleaseusethefollowinginformationtohelpyouanswer#6-9:The“pepperedmoth”livesinEurope.Itrangesincolorfromverylighttoverydarkgray.Likemanybugs,pepperedmothsareeatenbybirds.Thesebirdsusetheirvisiontohunt.Thepepperedmothlivesonbirchtrees,whichhavewhitebark.

ExamplesofPepperedMothColors: LightPepperedMothonBirchTree:

7) Whichofthefollowingbestdescribesthevariationseeninthepepperedmoths?a. Individualpepperedmothscanvarytheircolorstobebettercamouflaged.b. Withinthespeciesofpepperedmoth,individualsrangeincolorfromverylighttoverydarkgray.c. Therearemultiplespeciesofpepperedmoth,eachwithadifferentcolor.d. Overtime,thepepperedmothsvariedincolorfromlightgraytodarkgray.

8) Thereisalimittothetotalnumberofpepperedmothsthatcaneverexistinthepopulationbecause:

a. Theyhaveaveryshortlifespanb. Theycannotreproducequicklyenoughtoexceedacertainpopulationsizec. Therearenotenoughresourcesforalloffspringthatareborntosurvived. Therearenotenoughmatesavailablee. Theyareeatenbybirds

9) Asthepepperedmothpopulationevolvesbynaturalselection,thepepperedmothscompetewith…

a. Eachotherb. Otherbugsc. Thebirdsd. Thetreese. Theenviornment

10) Weknowthatthenumberoflightanddarkmothsinthepepperedmothpopulationhaschangedovertime.

Beforetheindustrialrevolution,over95%ofmothswerelightcoloredandtheremaining5%weredarkcolored.Whentheindustrialrevolutionbegan,humansbuildmanyfactoriesthatpollutedtheairwithsmokeandsoot.Thesootcoveredthebirchtrees,turningtheirbarkblack.Duringthistime,over95%ofmothsweredarkcoloredandtheremaining5%werelightcolored.Pleasewrite2-3sentencesexplainingHOWthischangeoccurred.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

11) Manyofthecropsthatwefarmtodayforfood,likecorn,arewelladaptedtotheirenvironments,butdonothavemuchgeneticdiversity.WhichofthefollowingwouldbeMOSTLIKELYtooccurifanewfungusevolvedthatattackedcornplants?1. Farmedcornwouldgoextinctbecauseitcannotadapt2. Farmedcornwouldmutatetoadapttothefungus3. Farmedcornwouldevolvetoberesistanttothefungus4. Thefunguswouldevolvetoberesistanttothecorn5. Therewouldbelittle/noeffectonthecornbecauseitis

alreadywelladapted.

12) VariationexistswithinALLspeciesbecauseof:

a. Mitosisb. Meiosisc. Sexualreproductiond. Evolutionbynaturalselectione. RandommutationsinDNA

Page 9: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

QUIZ:HISTORYOFLIFEONEARTH PERIOD:NAME: DATE:

1) WhichofthefollowingstatementsbestdescribeswheretheoxygenonEarthcamefrom:a. OxygenhasalwayssurroundedtheEarthfromthetimeitwasfirstformed.b. Oncetheearthcooled,volcanoeseruptedandreleasedoxygenthathadbeentrappedinsidetheEarth.c. Anearlyprokaryotecellevolvedtheabilitytodophotosynthesisandbeganreleasingoxygen.d. Earlytreesevolvedtheabilitytodophotosynthesisandbeganreleasingoxygen.e. Earlyoceananimalstookoxygenoutofthewatertobreathe.

2) WhichofthefollowingstatementsbestdescribeswheretheoceansonEarthcamefrom:

a. WaterhasalwaysbeenonthesurfaceoftheEarthfromthetimeitwasfirstformed.b. Oncetheearthcooled,volcanoeseruptedandreleasedwaterthathadbeentrappedinsidetheEarth.c. Anearlyprokaryotecellevolvedtheabilitytodophotosynthesisandbeganreleasingwater.d. TheicecapsonthepolesoftheEarthmeltedandcreatedtheoceans.e. Earlyoceananimalstookoxygenoutofthewatertobreathe.

3) WhichofthefollowingstatementsbestdescribeswherethesurfaceoftheEarth(theland)camefrom:

a. LavatouchedthewateronthesurfaceoftheEarthandquicklycooledandturnedsolid.b. ThelavathattheEarthwasmadeofgraduallycooledandturnedsolid.c. Volcanoeseruptedandreleasedlavathatcooledandturnedsolid.d. Oxygenreactedwiththelavaandcreatedland.e. ThesurfaceoftheEarthhasalwaysbeensolid.

4) Pleaseputthefollowingeventsinorderfromoldest(1)tomostrecent(9).

Firstcells(prokaryotes)appeared Earlyhumanancestors(inthegenusHomo)appeared Dinosaurswentextinct Reptiles&amphibiansevolvedonland Floweringplantsbecamewidespread Jellyfish,sponges,&clamsevolvedintheocean Birdsevolved Oceansformed Largeamountsofoxygenpresentintheatmosphere

5) Pleaseshowthe4erasofEarth’shistoryaccuratelyonthetimelinebelow.(BesuretoclearlylabeltheNAME&DATES

ofeachera.)

5bya 4bya 3bya 2bya 1bya Today

6) Chloroplasts are the organelles in that carry out photosynthesis inside many plant cells. The best evidence that chloroplasts were once independent cells is:

a. Chloroplasts are green in color b. Chloroplasts have their own DNA c. Some cells are able to “eat” others by surrounding

them d. Not all plant cells have chloroplasts e. Oxygen is present in the Earth’s atmosphere

7) The process in which chloroplasts were incorporated into other prokaryotic cells to become eukaryotes is called: ____________________________

Page 10: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

QUIZ:PRIMATE&HUMANEVOLUTION PERIOD:NAME: DATE:

1) Pleasedrawanevolutionarytreeshowingtherelationshipsbetweenthe5modernprimategroups:

2) Youareaprimatologistatthezoo.Youhaveanewanimaljoiningyourcollection.Shehasopposabletoes&thumbs,livesprimarilyontheground,andhasanon-prehensiletail.Whatprimategroupshouldshebeplacedwith?

a. OldWorldMonkeysb. NewWorldMonkeysc. Apesd. Humanse. Prosimiansf. Pergatorius

3) Whichtraitwouldbemosthelpfulindistinguishinganewworldmonkeyfromaprosimian?a. Bodysizeb. Numberofteethc. Descriptionoftaild. Binocularvisione. ShapeofNose

4) Pleasecircletrueorfalseforeach.Humansaretheonlyprimatesthat…a. usetools. TRUE FALSEb. careforsickorinjuredindividuals. TRUE FALSEc. usefacialexpressionstocommunicate. TRUE FALSEd. spendmultipleyearsraisingandteachingtheiroffspring. TRUE FALSE

Page 11: QUIZ: HOMOLOGOUS & ANALOGOUS STRUCTURES AND …€¦ · 2) Complete each statement with the BEST phrase from the list to the right. (You may use the same phrase more than once.) A)

5) Pleasecircletrueorfalseforeach:a. Humansaremorecloselyrelatedtomonkeysthantheyaretogorillas. TRUE FALSEb. Humansevolvedfrommoderndaychimpanzees. TRUE FALSEc. Australopithecuswasacommonancestorofbothmodernhumans

andmodernchimpanzees. TRUE FALSEd. Atsomepointsinhistory,thereweremultiplehominin(human)species

LivingonEarthatthesametime. TRUE FALSE

6) CompareandcontrastAustralopithecusandHomoerectus:a. Bothwerebipedal,butonlyHomoerectusstilllivedinthetreesb. Bothhadequallylargebrains,butonlyHomoerectuswasbipedalc. Bothhadequallylargebodies,butonlyHomoerectushadamodernhumanbraind. Bothwerebipedal,butonlyHomoerectusmadehuntingweaponsandusedfiree. BothwereancestorsoftheNeanderthals,butonlyHomoerectusinterbredwiththem

7) Twoofthemajortraitsthatdistinguishhumansfromotherprimatesarebeingfullybipedalandhavingthelargest,mostintelligentbrains.Whatpressuresdrovethedevelopmentofthesetwotraitsinhumanevolution?(PleasebespecificaboutBOTHtraits!)

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________