Download Bio EOCE Practice Test 1 from HT Answer Key

BioEOCEPract iceTest 1fromHTAnswerKey
1.
Theimagebelowrepresentsaphaseofmitosis.Whichphaseisbestrepresentedbytheimage?
a. anaphase
b. interphase
c. telophase
d. metaphase
2.
Whatishappeningduringthephaseofmitosisrepresentedbytheimagebelow?
a. cytokinesisdividesthecytoplasm
b. chromatidscoiltoformchromosomes
c. chromosomesmovetooppositepolesofthecell
d. chromosomesalignalongthe"equator"ofthecell
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3.
TheregionofthebrainrepresentedbyF1,F2,andF3onthediagramisknowasthe.
a. Cerebrum
b. BrainStem
c. Diencephalon
d. TemporalLobe
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4.
Whichkingdomdoestheorganismpicturedbelowbelongto?
a. fungi
b. plantae
c. protista
d. animalia
5.
Whichstructureontheorganismbelowaidsprimarilyinmovement?
a. cilia
b. analpore
c. oralgroove
d. cytoplasm
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6.
Whichconsumerisgoingtogetthemostbenefitfromtheenergyofthesun?
a. mouse
b. mushroom
c. snake
d. hawk
7.
Whatisthesugarthatcomprisesthestructureindicatedby#2inthediagram?
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a. ribose
b. deoxyribose
c. glucose
d. cellulose
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8.
Prepareanargumenttodefendapositionastowhetherornottheobjectintheimageisorisnota
livingthing.
Theobjectisavirus.Virusesarenotconsideredlivingbecausetheydonotexemplifyall
ofthefactorsoflife.Whiletheydoevolveandreproduce,theyarenotmadeofcells,use
energy,orrespondtostimuli.Inaddition,theydonothaveauniversalgeneticcode
sharedbyallorganisms.
9.
Whichphaseofmitosiscomesimmediatelybeforethephaserepresentedintheimagebelow?
a. anaphase
b. prophase
c. telophase
d. metaphase
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10. Theimagebelowrepresentsaphaseofmitosis.Whichphaseismostlikelyrepresentedbytheimage?
a. anaphase
b. metaphase
c. prophase
d. telophase
11. Whichstatementistrueaboutstructure"M"shownontheplantcellbelow?
a. Misthecellmembraneandisalsofoundonanimalcells.
b. Misthecellmembraneandisnotfoundonanimalcells.
c. Misthecellwallandisalsofoundonanimalcells.
d. Misthecellwallandisnotfoundonanimalcells.
12. ThepictureshowsexamplesofthedifferentbeaktypesDarwinobservedonthefinchesofthe
GalapagosIslands.Howdoesthisstructureprovideevidenceforevolution?
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ThedifferentGalapagosfinchspeciesevolvedfromonecommonspeciesoffinchover
time.Thisiscalledadaptiveradiation,wherethedifferentspeciesevolveinorderto
takeadvantageofdifferentecologicalnichesoftheislands
13. Writeeachletterandthenameoftheorganelleitisindicating.Hints:
Bispointingtothebarrieraroundtheorganelle,notthenameofthewholething
Cispointtotinyroundbummps
Eispointingtothepartclosesttothenuclearmembranethatisbumpy
Hispointtothestuffinsidethecell
Ihasenzymesinitfordigestion
Kisstoringmaterialforlater
Choices:
SmoothER
RoughER
Lysosome
Cytoskeleton
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GolgiApparatus
Centriole
Cytoplasm
Nucleolus
NuclearEnvelope(Membrane)
Ribosomes
Mitochondria
Vacuole
Cellmembrane
A:Nucleolus
B:NuclearEnvelope(Membrane)
C:Ribosomes
D:SmoothER
E:RoughER
F:Cytoskeleton
G:Centriole
H:Cytoplasm
I:Lysosome
J:Mitochondria
K:Vacuole
L:GolgiApparatus
M:Cellmembrane
14. Whichoftheseisthegreatestthreattoplantspecies?
a. habitatdestruction
b. lackofpollinators
c. Lackofnitrogencompounds
d. misunderstandingofplantlifecycles
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15. Whichofthefollowingistrueregardingthefossilrecord?
a. Theyoungestfossilsarefoundinthedeepestlayerofsedimentaryrock.
b. Thefossilrecordiscomplete
c. Differentgeologicaleventshavealteredthefossilrecord.
d. Thefossilrecordisnotsubstantialenoughtoreallypiecetogetherhistory.
16. Duringastudysessionaboutevolution,oneofyourfellowstudentsremarks,"Thegiraffestretched
itsneckwhilereachingforhigherleaves;itsoffspringinheritedlongernecksasaresult."Which
statementismostlikelytobehelpfulincorrectingthisstudent'smisconception?
a. Characteristicsacquiredduringanorganism'slifearegenerallynotpassedonthrough
genes.
b. Spontaneousmutationscanresultintheappearanceofnewtraits.
c. Onlyfavorableadaptationshavesurvivalvalue.
d. Disuseofanorganmayleadtoitseventualdisappearance.
e. Ifthegiraffesdidnothavetocompetewitheachother,longerneckswouldnothavebeen
passedontothenextgeneration.
17. Whichorganisminthisdiagramwouldoccupythetopconsumerposition?
a. themushrooms
b. thehawk
c. themouse
d. thesnake
18. Writeeachletterandthenameoftheorganelleitisindicating.Hints:
Aispointingtothedarkpartinthecenterofthenucleus
Bispointingtothebarrieraroundtheorganelle,notthenameofthewholething
Cispointingtotinyroundbumps
Dispointingtoamembranethatdoesn'thavebumps
Eispointingtoamembraneconnectedtothenuclearmembranethathasbumps
Ihasenzymesinitfordigestion
Kisstoringmaterialforlater
Hispointtothestuffinsidethecell
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A:Nucleolus
B:NuclearEnvelope(Membrane)
C:Ribosomes
D:SmoothER
E:RoughER
F:Cytoskeleton
G:Centriole
H:Cytoplasm
I:Lysosome
J:Mitochondria
K:Vacuole
L:GolgiApparatus
M:Cellmembrane
19. Seaweedisatypeof.
a. fungus
b. algae
c. parasite
d. monera
20. RobertHookewasthefirstscientesttoexaminecells.Heexaminedasliceofcorkunderasimple
microscope.Wasalsoresponsiblefornamingcells.
21. Thetworeactantsofphotosynthesisarecarbondioxideandwater.
22. Thelowestlevelofbiologicalorganizationthatcanpreformalltheactivitiesrequiredforlifeisthe
.
a. OrganSystem
b. Tissue
c. Organism
d. Cell
e. Organelle
23. Anextensionofthecytoplasmthatisusedformovementiscalledapseudopod.
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24. Whatiscohesion?
a. anattractionbetweendifferentsubstances
b. anattractionbetweensubstancesofthesamekind
c. anattractionbetween3molecules
d. anattractionbetweenpolysaccharidesandlipids
25. BeforeandduringDarwin'stime,manytheoriesofevolutionhadbeenproposed.Withwhichofthe
followingtheorieswouldDarwinmostlikelyagree?
a. Malthus'stheorythatspeciesandpopulationswerelimitedbyavailableresources,lack
ofresources,competitionandthatcompetitiondroveevolution
b. Cuvier'stheoryofcatastrophismwhereabruptchanges,andthesurvivorsofthosechanges
werenotnewspeciesatall.
c. Lyell'stheoryofuniformitywhereasteady,gradualandlengthymoldingoftheEarthandits
speciestookplaceoccurred.
d. Lamarcksuggestedtheorythatsinglesimpleformscouldbecomemorecomplexinanindividual
andtherebycausecharacteristicschangesthatcouldbeinheritedinthenextgeneration.
26. Unlikealethalmutationaneutralmutation
a. doesnotchangethesequenceofbasesinDNA
b. isaffectedbynaturalselection
c. willoccasionallybefavoredbyachangeintheenvironment
d. hasbeenalteringthephenotypesforbillionsofyears.
27. AllofthefollowingdriveevolutionEXCEPT
a. Changesinallelicfrequencies
b. differentialreproductivesuccess
c. geneticdrift
d. populationsingeneticequilibrium
28. Changesinallelicfrequenciesthatleadtoashiftinphenotypestooneextreme,asinthepeppermoth
population,areanexampleof
a. directionalselection
b. stabilizingselection
c. disruptiveselection
d. sexualselection
29. Althougheachofthefollowinghasabetterchanceofinfluencinggenefrequenciesinsmallpopulations
thaninlargepopulations,whichonemostconsistentlyrequiresasmallpopulationasapreconditionfor
itsoccurrence?
a. mutation
b. nonrandommating
c. geneticdrift
d. naturalselection
e. geneflow
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30. Atrendtowardthedecreaseinthesizeofplantsontheslopesofmountainsasaltitudesincreaseisan
exampleof:
a. acline.
b. abottleneck.
c. relativefitness
d. geneticdrift.
e. geographicvariation.
31. Notwopeoplearegeneticallyidentical,exceptforidenticaltwins.Themainsourceofgeneticvariation
amonghumanindividualsis:
a. newmutationsthatoccurredintheprecedinggeneration.
b. geneticdriftduetothesmallsizeofthepopulation.
c. thereshufflingofallelesinsexualreproduction
d. geographicvariationwithinthepopulation
e. environmentaleffects
32. Sparrowswithaverage–sizedwingssurviveseverestormsbetterthanthosewithlongerorshorter
wings,illustrating
a. thebottleneckeffect
b. disruptiveselection
c. frequency–dependentselection.
d. neutralvariation.
e. stabilizingselection.
33. Speciation
a. occursatsuchaslowpacethatnoonehaseverobservedtheemergenceofnewspecies.
b. occursonlybytheaccumulationofgeneticchangeovervastexpansesoftime.
c. mustbeginwiththegeographicisolationofasmall,frontierpopulation.
d. andmicroevolutionaresynonymous
e. caninvolvechangestoasinglegene
34. Whichistheshowshowascientificnameofanorganismshouldbewritten?
a. Sepiaatlanticus
b. Sepia
c. atlanticus
d. Atlanticussepia
e. bothaanddarecorrect.
35. Inbiology,homeostasisisreferredas.
a. Alwayschanging
b. abiliitytomaintainaninternalbalance
c. Changeoccasionally
d. Changeonceamonth
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