(类群),familiesandgenera(属)havesomespeciesthatliveintheseaandothersthatliveonland,marinebiologyclassifiesspeciesbasedontheenvironmentratherthanontaxonomy(分类学).anismsinteractwitheachotherandtheenvironment,,providingfood,medicine,andrawmaterials,,.anismscontributesignificantlytotheoxygencycle,andareinvolvedintheregulationoftheEarth',,fromthemicroscopic,includingmostzooplanktonandphytoplanktontothehugecetaceans(whales)whichreachuptoareported30meters(98feet).',areaswheretectonicplates(地壳板块)aremovingapart,oceanbasins,,fumaroles(喷气孔),,theareasaroundsubmarinehydrothermalventsarebiologicallymoreproductive,(古生菌)formthebaseofthefoodchain,anisms,includinggianttubeworms,clams,'smoonEuropa,.()Meaning:Inthefollowingparagraphs,,thefloatingplanktonsareatriskofgettingexposedtodeleteriousraysofthesun.()Meaning:Becausetheozonelayerisdecreasedmarkedly,:,theyeartheEPAwasestablis
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