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Page 1: HOW DO LIVING THINGS STAY SAFE AND GROW? Smithsonian · HOW DO LIVING THINGS STAY SAFE AND GROW? Cows Smithsonian Science for the Classroom™

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HOW DO LIVING THINGS STAY SAFE AND GROW?CowsSmithsonian Science for the Classroom™© Smithsonian InstitutionCREDIT: Diane Kuhl/iStock/Getty Images Plus

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