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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:_____________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 6.ecosystemandbiosphere:_______________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 7.producersandconsumers:______________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 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.________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 17.Howdidthefoodwebchangewhengreywolvesweredisappearinginthe YellowstonenationalForest?_______________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 18.Howdolimitingfactoreffectthecarrycapacityofanenvironment?_______________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 19.Whatiscoevolution?____________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 20.Couldabalancedecosystemcontainproducersandconsumers,butnotany decomposers?Whyorwhynot?___________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ PredictingConsequences 21.Somebiologiststhinkthatcertainspecies,suchasalligatorsandwolves,help maintainbiologicaldiversityintheirecosystem.Predictwhatmighthappentoother organisms,suchasgarfishorherons,ifalligatorsweretobecomeextinct. ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 22.Doyouthinkthereisacarryingcapacityforhumans?Whyorwhynot? ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 23.Definethefollowingterms Competition:________________________________________________________________________________ Adaptation:___________________________________________________________________________________ Symbiosis:____________________________________________________________________________________ Foodchain:___________________________________________________________________________________ FoodWeb:____________________________________________________________________________________ Energypyramid:_____________________________________________________________________________ 24.Whichofthefollowingisnotapreyadaptation? a.camouflage b.chemicaldefense c.warningcoloration d.parasitism 25.Whatisapollinator?Providetwoexamplesofpollinators. ______________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ______________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________