Basicecosystems
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Basicecosystems

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    Basicecosystems Basicecosystems Presentation Transcript

    • ECOSYSTEMS
    • Living things+ Nonliving thingsECOSYSTEM
    • Living things in anecosystem arecalled a…COMMUNITY
    • PopulationPopulation+ PopulationCOMMUNITY
    • All energy in a foodweb comes fromthe…SUN
    • What makes ecosystems different?Amount of waterAmount of sunlightType of soil123
    • Name the three members inevery community.ProducersConsumersDecomposers
    • What causes ecosystems to change?Natural causes:DroughtDiseaseFireOverpopulation3214
    • What causes ecosystems to change?Changes caused by humans:Water pollutionAir pollutionLand pollutionConstruction1234
    • How can humans help to preventchanges in ecosystems?Use resources wiselyLaws that control pollutionClean up litterKeep rivers and lakes clean1234