http://www.earthlife.net/birds/digestion.html
SOURCES for images
http://www.earthlife.net/birds/digestion.html |
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http://curry.edschool.virginia.edu/go/edis771/fall99webquests/student/selizabethpotanko/home.html |
 http://www.earthlife.net/birds/digestion.html |
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http://www.geocities.com/sciencejanetc/7th_8th_grade/animal_kingdom/7th_8th_animal_kindom.html |
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http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20lectures/Animal%20Diversity/Protostomes/mollusks.htm |
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http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20lectures/Animal%20Diversity/Deuterostomes/echinode.htm |
WORMS
earthw1 
earthw2
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