ExpositoryTextPAIREDREADBluebirdandCoyotebyMaryMackieSTRATEGIES&SKILLSAWordcount:1,725**PhotographyCredit:CoverGeorgetteDouwma/Photographer’sChoice/GettyImages.**Thetotalwordcountisbasedonwordsintherunningtextandheadingsonly.Numeralsandwordsincaptions,labels,diagrams,charts,andsidebarsarenotincluded.ComprehensionStrategy:RereadSkill:CompareandContrastVocabularyStrategySentenceCluesVocabularyalert,competition,environment,excellent,prefers,protection,related,shelterContentStandardsScienceLifeScienceCopyright©TheMcGraw-HillCompanies,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedordistributedinanyformorbyanymeans,orstoredinadatabaseorretrievalsystem,withoutthepriorwrittenconsentofTheMcGraw-HillCompanies,Inc.,including,butnotlimitedto,networkstorageortransmission,orbroadcastfordistancelearning.Sendallinquiriesto:McGraw-HillEducationTwoPennPlazaNewYork,NewYork10121ISBN:978-0-02-118849-9MHID:0-02-118849-1PrintedintheUnitedStates.123456789DOC151413121110PAIREDREADChapter1AChangingWorld.........................2Chapter2TidePoolAdaptations......................6Chapter3TidePoolPredators........................12RespondtoReading.......................15BluebirdandCoyote.............16Glossary/Index............................19FocusonScience..................20EssentialQuestionHowdoanimalsadapttochallengesintheirhabitat?byMaryMackieChapter1Tidepoolcreaturesliveinaconstantlychangingenvironment.Ifyoutakeawalkalongarockyshorelineandlookcloselyattheindentationsintherocks,youwillseeawholeworldofcreatures.Clustersofmussels,limpets,andsmallsnailsclingtorocks.Thetentaclesofthegreenseaanemonewaveunderwater.Seastarsandspikyseaurchinsshowtheircolors.Crabsconcealthemselvesbeneathrocks.Theanimalsinatidepoolliveinaconstantlychangingenvironment.Twiceaday,oceanwaterrushesinandcoverstheland.Thenthewaterrushesoutagain,exposingtherocksandsand.Smallpoolsofwaterareleftbehind,buttherestoftheshoreremainsdry.2GeorgeGrall/NationalGeographic/GettyImagesThesmallpoolsofwateralongthesho...
