several test tubes filled with colourless and one with pink liquid standing in a test tube rack

---

Size: 5221px × 3481px
Photo credit: © blickwinkel/McPHOTO / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, abundant, analysing, analysis, check, check-, checking, checks, checkup, checkups, colourless, control, controlling, controls, equipment, experiment, experimental, experiments, filled, format, frequent, great, horizontal, indoor, indoors, inspecting, inspection, inspections, laboratory, large, liquid, liquids, lucent, mcphoto, number, numerous, pellucid, pellucidly, photography, pink, rack, research, researching, running, runnings, scrutinising, standing, test, testing, tests, transparent, trial, trials, tube, tubes, vitro