Download Chapter 18 Review

Chapter18Review NAME________________________________________
1.Defineeachofthefollowingterms:
A)Symbiosis__________________________________________________________________________________
B)Mutualism_________________________________________________________________________________
C)Commensalism____________________________________________________________________________
D)Parasitism_________________________________________________________________________________
Usethefollowingtermstocompletethesentencesbelow:biotic,abiotic,
ecosystem,community
2.Theenvironmentincludes__________________factorssuchaswater,rock,andlight.
3.Theenvironmentalsoincludes___________________,orlivingfactors.
4.Acommunityoforganismsandtheirenvironmentiscalleda(n)_____________________.
Foreachofthepairsbelow,explainincompletesentenceshowthemeaningsdiffer.
5.communityandpopulation:_____________________________________________________________
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6.ecosystemandbiosphere:_______________________________________________________________
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7.producersandconsumers:______________________________________________________________
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MultipleChoice
8.Aticksucksbloodfromadog.Inthis
9.Water,food,orsunlightarelikelytobe
relationship,thetickisthe________________ limitingfactors
andthedogisthe____________________.
a.whenpopulationsizedecreases.
a.parasite,prey
b.whenpredatorseattheirprey.
b.predator,prey
c.whenapopulationissmall.
c.parasite,host
d.whenapopulationisapproaching
d.host,parasite
carryingcapacity.
10.Nature’sRecyclersare
a.predators.
b.decomposers.
c.producers.
d.omnivores.
11.abeneficialassociationbetween
coralandalgaeisanexampleof
a.commensalism
b.parasitism
c.mutualism
d.predation
13.Whichorganismdoesthebaseofan
energypyramidrepresent?
a.producers
b.consumers
c.carnivores
d.scavengers
12.Theprocessbywhichenergymoves
throughanecosystemcanbe
representedby
a.foodchains.
b.energypyramids.
c.foodwebs.
d.alloftheabove.
14.Whichofthefollowingisthecorrect 15.Remoraandsharkhavea
orderinafoodchain?
relationshipthatisbestdescribedas
a.sun-producer-herbivore-scavenger- a.commensalism
carnivore
b.parasitism
b.sun-consumer-predator-parasite-
host
c.mutualism
c.sun-producer-decomposer-
d.predatorandprey
consumer-omnivore
d.sun-producer-herbivore-carnivore-
scavenger
16.Describetheenergyflowthroughafoodweb.________________________________________
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17.Howdidthefoodwebchangewhengreywolvesweredisappearinginthe
YellowstonenationalForest?_______________________________________________________________
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18.Howdolimitingfactoreffectthecarrycapacityofanenvironment?_______________
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19.Whatiscoevolution?____________________________________________________________________
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20.Couldabalancedecosystemcontainproducersandconsumers,butnotany
decomposers?Whyorwhynot?___________________________________________________________
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PredictingConsequences
21.Somebiologiststhinkthatcertainspecies,suchasalligatorsandwolves,help
maintainbiologicaldiversityintheirecosystem.Predictwhatmighthappentoother
organisms,suchasgarfishorherons,ifalligatorsweretobecomeextinct.
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22.Doyouthinkthereisacarryingcapacityforhumans?Whyorwhynot?
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23.Definethefollowingterms
Competition:________________________________________________________________________________
Adaptation:___________________________________________________________________________________
Symbiosis:____________________________________________________________________________________
Foodchain:___________________________________________________________________________________
FoodWeb:____________________________________________________________________________________
Energypyramid:_____________________________________________________________________________
24.Whichofthefollowingisnotapreyadaptation?
a.camouflage
b.chemicaldefense
c.warningcoloration
d.parasitism
25.Whatisapollinator?Providetwoexamplesofpollinators.
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