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    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/f75f9011-903e-4757-9fcf-fefac2599b59</gcmd:viewer>
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  <skos:Concept rdf:about="f75f9011-903e-4757-9fcf-fefac2599b59">
    <skos:broader rdf:resource="58f39353-7e1c-4884-9501-376cd0377fbf"/>
    <skos:prefLabel xml:lang="en">DIURNAL MOVEMENTS</skos:prefLabel>
    <gcmd:reference gcmd:text="Allaby, Michael. 1994.  Ecology. Oxford University Press.  Oxford, New York." xml:lang="en"/>
    <skos:definition xml:lang="en">Diurnal movements are movements that occur at daily intervals as appliedto such daily rhythms as leaf or flower opening and closing or thecharacteristic rise and fall of temperature associated with the hours oflight and darkness.</skos:definition>
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