Wykadrowany widok naukowców dodając czerwony płyn do probówki w pobliżu szklanej kolby z czerwonym płynem i płytami Petriego - Materiał filmowy & wideo

Hands of an unidentified female lab worker pick up test samples and pipet them into glass flasks while sitting at a table in a research center. Laboratory study and research concept

Chemist pouring yellow substance test tube, petrol quality analysis, experiment

Cropped view of young scientist adding liquid with pipette to one of several test tubes

Partial view of scientist adding red liquid to one of several test tubes in laboratory

Attentive scientist looking at transparent liquid in test tube and writing down results in laboratory

Attentive scientist looking at blue liquid in test tube and writing down results in laboratory

Pretty, attentive scientists making research with microscope in laboratory

Two serious scientists talking in laboratory near table with medical glassware