African American naukowiec w okularach pisanie na Schowka patrząc na próbki przez Mikroskop w laboratorium - Materiał filmowy & wideo

African american scientist in glasses using microscope in lab

African american scientist in glasses looking at sample through microscope in lab

African american scientist using digital tablet and looking at glass flasks in lab

African american scientist using digital tablet, looking at glass flasks and using microscope in lab

Pretty, attentive scientists making research with microscope in laboratory

African american scientist looking at sample through microscope in lab

African american scientist in glasses using microscope in lab

African american scientist in glasses looking at sample through microscope in lab

African american scientist using digital tablet and looking at glass flasks in lab

African american scientist using digital tablet, looking at glass flasks and using microscope in lab

African american scientist looking at sample through microscope in lab

Selective focus of african american scientist in glasses looking at sample through microscope in lab