w w w w w w w w
Test Bank w
towaccompany
Ecology, Fifth Edition
w w
Bowmanw•wHacker
Chapter 1: The Web of Life
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TESTwBANKwQUESTIONS
MultiplewChoice
1. Whatwiswonewreasonwthatwamphibianswarewespeciallywgoodwbiologicalwindicatorsw
ofwenvironmentalwconditions?
a. Theywlivewinwbothwterrestrialwandwaquaticwenvironments.
b. Itwiswdifficultwforwpollutantswtowpasswthroughwtheirwskin.
c. Theywarewdecliningwinwnumber.
d. Theywcanwtoleratewhighwlevelswofwpollution.
Answer:wa
TextbookwReference:wDeformitywandwDeclinewinwAmphibianwPopulations:wAwCasewStudy
LearningwObjective:wNotwaligned
Bloom’swLevel:w2.wUnderstanding
2. ThewecologicalwstudywofwtheweffectwofwRibeiroiawandwpesticideswonwfrogwpopulatio
nswsuggestswthatwallwofwthesewstatementswaboutwthewstudywofwecologywarewtruewexceptw
that
a. itwdescribeswhowworganismswaffectwthewenvironment.
b. itwdescribeswhowwthewenvironmentwaffectsworganisms.
c. itwstudieswhowwbioticwandwabioticwfactorswaffectweachwother.
d. humanswarewnotwpartwofwitswsubjectwmatter.
Answer:wd
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:w 1.1.1wExplainwhowwinteractionswbetweenworganismswandwtheirwenviro
nmentwcanwaffectwotherworganismswandwpotentiallywleadwtowunexpectedwconsequences.wBloo
m’swLevel:w3.wApplying
3. WestwNilewviruswcanwbewconsideredwanwexamplewofwanwunintendedwconsequencew
ofwecologicalwinteractionswbecausewit
a. originatedwinwAfrica.
b. iswtransmittedwbywmosquitoes.
c. emergedwduewtowhumanwimpactswonwthewenvironment.
d. iswincreasingwrapidlywduewtowawrisewinwtrematodewpopulations.
Answer:wc
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:w1.1.1wExplainwhowwinteractionswbetweenworganismswandwtheirwenviro
nmentwcanwaffectwotherworganismswandwpotentiallywleadwtowunexpectedwconsequences.wBloo
m’swLevel:w3.wApplying
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4. Inw1878,wsealwhunterswintroducedwrabbitswtowMacquariewIsland,wbetweenwAustraliawand
wAntarctica. wThewrabbit wpopulationwsoaredwandwthewMyxomawviruswwaswthenwintroducedw
towkillwoffwrabbits.wItwworked,wbutwthewislands’wcats,wwhichwhadwdependedwonwthewrabbitsw
forwfood,wbeganweatingwseabirdswinstead.wTowsavewthewseabirds,wscientistswstartedwawprogr
amwtowkillwoffwthewcats.wTwenty-
fourwyearswlater,winw2009,wthewrabbitwpopulationwhadwexplodedwagain,wandwrabbitswwerewr
avagingwnativewplantwspecieswandwdevastatingwthewisland’swecosystem.wThiswstorywappear
swtowbewanwexamplewof
a. sound,wresponsiblewecologicalwmanagement.
b. unintendedwecologicalwconsequences.
c. predictablewbutwunavoidablewconsequences.
d. awserieswofwcatastropheswresultingwfromwrandomwchance.
Answer:wd
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:w1.1.1wExplainwhowwinteractionswbetweenworganismswandwtheirwenviro
nmentwcanwaffectwotherworganismswandwpotentiallywleadwtowunexpectedwconsequences.wBloo
m’swLevel:w4.wAnalyzing
5. WhatwevidencewledwRuthwandwSessionswtowconcludewthatwparasiteswcouldwbewthewcausew
ofwsomewofwthewdeformitieswinwthewfrogswfoundwinwthewpondswofwNorthernwCalifornia?
a. Nonewofwthewdeformedwfrogswfoundwinwthewpondswwerewinfectedwwithwthewparasites.
b. Theywdirectlywobservedwthewparasiteswcausingwthewdeformities.
c. Glasswbeadswplacedwnearwthewlocationwofwlimbwdevelopmentwinwtadpoleswmimickedwth
eweffectwofwparasiteswandwcausedwdeformities.
d. Deformitieswinwthewfrogswoccurredwinwnaturewbutwnotwinwthewlaboratory.
Answer:wc
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:wNotwaligned
Bloom’swLevel:w2.wUnderstanding
6. Inwadditionwtowthewfrogswthemselves,wwhichworganismswactwaswhostswforwthewflatwormwth
atwhaswbeenwlinkedwtowdeformitieswinwfrogs?
a. Birdswandwsnails
b. Snailswandwturtles
c. Turtleswandwbirds
d. Snailswandwclams
Answer:wa
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:wNotwaligned
Bloom’swLevel:w1.wRemembering
7. Referwtowthewfigure.
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ThewfigurewiswbasedwonwJohnson’swexperimentwonwtheweffectswofwtrematodewparasiteswonwtad
poles.wWhichwstatementwbestwdescribeswthewcontrolwgroupwinwthewexperiment?
a. Tadpoleswwerewgrownwinwthewabsencewofwtrematodewparasites.
b. Tadpoleswwerewallowedwtowgrowwinwnetswinwtheirwnaturalwenvironment.
c. Tadpoleswwerewgrownwinwthewpresencewofwonlywonewtrematodewparasite.
d. Tadpoleswwerewgrownwinwawtankwinwwhichwthewconcentrationwofwtrematodewparasitesww
aswsimilarwtowthewparasitewconcentrationwofwpondswinwwhichwdeformedwfrogswwerewfound.
wAnswer:wa
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:wNotwaligned
Bloom’swLevel:w2.wUnderstanding
8. Referwtowthewfigure.
ThewfigurewiswbasedwonwJohnson’swexperimentwonwtheweffectswofwtrematodewparasiteswonwtad
poles.wWhichwclaimwiswsupportedwbywthewfigure?
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a. Aswthewnumberwofwparasiteswthatwthewtadpoleswwerewexposedwtowdecreased,wthewpercenta
gewofwsurvivingwfrogswwithwdeformitieswincreased.
b. Aswthewnumberwofwparasiteswthatwthewtadpoleswwerewexposedwtowincreased,wthewpercenta
gewofwsurvivingwtadpoleswdecreased.
c. Ifwtherewwerewnowparasiteswpresent,w100%wofwthewtadpoleswsurvivedwtowmetamorphosis.
d. Tadpoleswwithwmoderatewlevelswofwparasiteswhadwthewlowestwpercentwofwdeformitieswi
nwadults.
Answer:wb
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:wNotwaligned
Bloom’swLevel:w4.wAnalyzing
9. Referwtowthewfigure.
ThewfigurewiswbasedwonwJohnson’swexperimentwonwtheweffectswofwtrematodewparasiteswonwta
dpoles.wSupposewthatw60wtadpoleswarewexposedwtow32wparasiteswperwtadpole.wBasedwonwthewr
esultswofwthewfigure,waboutwhowwmanywtadpoleswwouldwyouwexpectwtowsurvivewtowmetamorp
hosis?
a. 12
b. 25
c. 40
d. 58
Answer:wb
TextbookwReference:w1.1wEventswinwthewnaturalwworldwarewinterconnected.
LearningwObjective:wNotwaligned
Bloom’swLevel:w3.wApplying
10. Referwtowthewfigure.
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s mynursytest.store