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    Plastic test tubes with green lids in rack. — Stock Photo
    Plastic test tubes with green lids in rack.
    Surprised students conducting exploding foam scientific experiment in classroom laboratory — Stock Photo
    Surprised students conducting exploding foam scientific experiment in classroom laboratory
    Numbered test tubes with red liquid for biological research. — Stock Photo
    Numbered test tubes with red liquid for biological research.
    Scientist experimenting with cultures in petri dishes with biohazard warning in microbiology lab. — Stock Photo
    Scientist experimenting with cultures in petri dishes with biohazard warning in microbiology lab.
    Detail of chemical glass apparatus, full frame. — Stock Photo
    Detail of chemical glass apparatus, full frame.
    Female scientists in face masks holding specimen in laboratory — Stock Photo
    Female scientists in face masks holding specimen in laboratory
    Close-up shot of surgeon in operating room at work — Stock Photo
    Close-up shot of surgeon in operating room at work
    Crop unrecognizable male doctor demonstrating modern plastic mannequin head for dentistry lessons against gray wall — Stock Photo
    Crop unrecognizable male doctor demonstrating modern plastic mannequin head for dentistry lessons against gray wall
    Close-up of beaker, test tube rack and clipboard on table — Stock Photo
    Close-up of beaker, test tube rack and clipboard on table
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom — Stock Photo
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom
    Close-up of bacteria colonies growing in Petri dish. — Stock Photo
    Close-up of bacteria colonies growing in Petri dish.
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Close-up of flask, lab weighing scale and equipment in laboratory — Stock Photo
    Close-up of flask, lab weighing scale and equipment in laboratory
    Close-up of worker working in glass factory — Stock Photo
    Close-up of worker working in glass factory
    Female technician in white coat using microscope. — Stock Photo
    Female technician in white coat using microscope.
    Female college student holding equipment while practicing experiment in laboratory — Stock Photo
    Female college student holding equipment while practicing experiment in laboratory
    Engineer holding dial calipers over blueprints on table. — Stock Photo
    Engineer holding dial calipers over blueprints on table.
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Close-up male scientist lab machine in laboratory — Stock Photo
    Close-up male scientist lab machine in laboratory
    Laboratory technician with micro pipette sampling into petri dish. — Stock Photo
    Laboratory technician with micro pipette sampling into petri dish.
    Assistant working in lab with pink liquid — Stock Photo
    Assistant working in lab with pink liquid
    Scientist holding petri dish with biohazard warning in microbiology lab. — Stock Photo
    Scientist holding petri dish with biohazard warning in microbiology lab.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Scientist removing medical samples from machine in lab — Stock Photo
    Scientist removing medical samples from machine in lab
    Close-up of hands of scientist pipetting sample from culture in Petri dish. — Stock Photo
    Close-up of hands of scientist pipetting sample from culture in Petri dish.
    Mid section of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Mid section of scientist in laboratory mixing samples of soil with reagent.
    Contemporary pharmaceutical machine with piles of pink pills on conveyor placed in manufacturing laboratory — Stock Photo
    Contemporary pharmaceutical machine with piles of pink pills on conveyor placed in manufacturing laboratory
    Close-up of scientist doing experiment in lab — Stock Photo
    Close-up of scientist doing experiment in lab
    Doctors hands making a research in laboratory — Stock Photo
    Doctors hands making a research in laboratory
    Close-up of multipipette sampling liquid into tube rack in laboratory. — Stock Photo
    Close-up of multipipette sampling liquid into tube rack in laboratory.
    Female scientist in face mask and gloves working in laboratory — Stock Photo
    Female scientist in face mask and gloves working in laboratory
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom
    Wheat grains in petri dish with laboratory equipment for food research. — Stock Photo
    Wheat grains in petri dish with laboratory equipment for food research.
    Stacked petri dishes with with biohazard warning. — Stock Photo
    Stacked petri dishes with with biohazard warning.
    Female scientist working at fume hood in laboratory — Stock Photo
    Female scientist working at fume hood in laboratory
    Close-up of blood sample in kidney dish. — Stock Photo
    Close-up of blood sample in kidney dish.
    Close-up of chemistry apparatus glassware in laboratory. — Stock Photo
    Close-up of chemistry apparatus glassware in laboratory.
    Laboratory technician with micro pipette sampling into test tube. — Stock Photo
    Laboratory technician with micro pipette sampling into test tube.
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Petri dishes with blood agar stacked on blue background. — Stock Photo
    Petri dishes with blood agar stacked on blue background.
    Close-up of microbes and fungus growing on agar plate. — Stock Photo
    Close-up of microbes and fungus growing on agar plate.
    Boy holding a globe — Stock Photo
    Boy holding a globe
    Side view of male scientist experimenting in laboratory — Stock Photo
    Side view of male scientist experimenting in laboratory
    Empty and sterile phials in red plastic box. — Stock Photo
    Empty and sterile phials in red plastic box.
    Attentive male scientist experimenting in laboratory — Stock Photo
    Attentive male scientist experimenting in laboratory
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom
    Close-up of male scientist experimenting in laboratory — Stock Photo
    Close-up of male scientist experimenting in laboratory
    Close-up of microbes and fungus growing on agar plate on white background. — Stock Photo
    Close-up of microbes and fungus growing on agar plate on white background.
    Female researcher with micro pipette sampling into test tube. — Stock Photo
    Female researcher with micro pipette sampling into test tube.
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Grains and carbohydrates in test tubes. — Stock Photo
    Grains and carbohydrates in test tubes.
    Scientist using pipette tray at fume hood in laboratory — Stock Photo
    Scientist using pipette tray at fume hood in laboratory
    Team of professional surgeons and nurses suture wound — Stock Photo
    Team of professional surgeons and nurses suture wound
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Female scientists in face masks working in laboratory — Stock Photo
    Female scientists in face masks working in laboratory
    Laboratory technician using micro pipette while sampling into test tube. — Stock Photo
    Laboratory technician using micro pipette while sampling into test tube.
    Scientist examining cultured cells under microscope. — Stock Photo
    Scientist examining cultured cells under microscope.
    Smiling boy student assembling DNA model in classroom — Stock Photo
    Smiling boy student assembling DNA model in classroom
    Technicians working in sealed and sterile biomedical laboratory. — Stock Photo
    Technicians working in sealed and sterile biomedical laboratory.
    Life science technicians using micropipette in laboratory. — Stock Photo
    Life science technicians using micropipette in laboratory.