white test rat sitting microscope laboratory lab concept testing drugs vaccines animals |
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| navigate by keyword : animal animals biology blackboard book chalk chalkboard class classroom clever college communication concept conceptual copy desk domestic draw drawing drugs educate education elementary empty examination experiment experimental exploration frame fun funny genetic genetically greeting group handwriting home homework humanity kid knowledge lab laboratory learn learning lesson letter message microscope nobody object pencil preschool rat room school schooling sitting space stack stationery student studies study supplies table teach teacher teaching test testing text textbook uniform vaccines white wood wooden |
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| White test rat sitting on microscope. Laboratory rat in a lab. Concept - testing of drugs, vaccines, laboratory animals, humanity, genetic studies |
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