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    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    From above glass vials with pink liquid and empty tube on table by laptop with black screen in lab — Stock Photo
    From above glass vials with pink liquid and empty tube on table by laptop with black screen in lab
    Hand holding multi well plate with samples with DNA results in background. — Stock Photo
    Hand holding multi well plate with samples with DNA results in background.
    Tools for gathering evidence at scene of crime. — Stock Photo
    Tools for gathering evidence at scene of crime.
    Bacterial colonies on agar plate. — Stock Photo
    Bacterial colonies on agar plate.
    Father and son on a lake shore — Stock Photo
    Father and son on a lake shore
    Single test tube with blood sample. — Stock Photo
    Single test tube with blood sample.
    Test tubes with urine samples for analysis on white background, studio shot. — Stock Photo
    Test tubes with urine samples for analysis on white background, studio shot.
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research. — Stock Photo
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research.
    Scientific or medical samples on glass table — Stock Photo
    Scientific or medical samples on glass table
    Close-up of human blood and various hiv samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various hiv samples in test tubes while screening in medical lab.
    Mid section of laboratory technicians holding tags in blood bank — Stock Photo
    Mid section of laboratory technicians holding tags in blood bank
    Human brain and electrodes, brain stimulation conceptual image. — Stock Photo
    Human brain and electrodes, brain stimulation conceptual image.
    Female doctor teaching diabetic senior patient how to use glucometer — Stock Photo
    Female doctor teaching diabetic senior patient how to use glucometer
    Urine sample with test strip showing results. — Stock Photo
    Urine sample with test strip showing results.
    Organic soil certification inspector marking sample. — Stock Photo
    Organic soil certification inspector marking sample.
    Patient undergoing skin prick test in allergy clinic. — Stock Photo
    Patient undergoing skin prick test in allergy clinic.
    Portrait of senior woman undergoing an x-ray test in hospital — Stock Photo
    Portrait of senior woman undergoing an x-ray test in hospital
    Optometrist examining patient eyes with ophthalmoscope in clinic — Stock Photo
    Optometrist examining patient eyes with ophthalmoscope in clinic
    Police evidence including finger print, DNA swab and results. — Stock Photo
    Police evidence including finger print, DNA swab and results.
    Car dealer helping man with test drive — Stock Photo
    Car dealer helping man with test drive
    Gloved hand of laboratory assistant examining growth in petri dish, close-up. — Stock Photo
    Gloved hand of laboratory assistant examining growth in petri dish, close-up.
    Senior woman doing a mailed DNA test at home. — Stock Photo
    Senior woman doing a mailed DNA test at home.
    Black woman in optometry cabinet during study of the eyesight — Stock Photo
    Black woman in optometry cabinet during study of the eyesight
    Person with her feet in pool — Stock Photo
    Person with her feet in pool
    From above coronavirus negative and positive blood test near vaccine flask and syringe on pink background — Stock Photo
    From above coronavirus negative and positive blood test near vaccine flask and syringe on pink background
    Female doctor performing allergy skin prick test on little boy arm. — Stock Photo
    Female doctor performing allergy skin prick test on little boy arm.
    Female scientist working with test tube. — Stock Photo
    Female scientist working with test tube.
    Blood testing equipment — Stock Photo
    Blood testing equipment
    Close-up of antibiotic testing in petri dish. — Stock Photo
    Close-up of antibiotic testing in petri dish.
    Green seedlings in test tubes, close-up. — Stock Photo
    Green seedlings in test tubes, close-up.
    Serious male worker examining juice in factory — Stock Photo
    Serious male worker examining juice in factory
    Lab technician adding reagent to sample while measuring pH — Stock Photo
    Lab technician adding reagent to sample while measuring pH
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Close up scientist in rubber gloves placing specimen in centrifuge — Stock Photo
    Close up scientist in rubber gloves placing specimen in centrifuge
    Raspberries in test tube, studio shot. — Stock Photo
    Raspberries in test tube, studio shot.
    Little boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Little boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Girl having eye test in clinic with doctor. — Stock Photo
    Girl having eye test in clinic with doctor.
    Female doctor in protective face mask taking swab test of woman in clinic during coronavirus crisis. healthcare services, illness prevention and pandemic. — Stock Photo
    Female doctor in protective face mask taking swab test of woman in clinic during coronavirus crisis. healthcare services, illness prevention and pandemic.
    Plant biotechnology and research — Stock Photo
    Plant biotechnology and research
    Mid section of scientist doing experiment in lab — Stock Photo
    Mid section of scientist doing experiment in lab
    Collage of crowd masks protecting factor KN95 on a red background overhead view — Stock Photo
    Collage of crowd masks protecting factor KN95 on a red background overhead view
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory.
    Close-up of test tube in rack at blood bank — Stock Photo
    Close-up of test tube in rack at blood bank
    Sliced bell pepper in test tube, studio shot. — Stock Photo
    Sliced bell pepper in test tube, studio shot.
    Radiographer taking computed tomography scan of female patient. — Stock Photo
    Radiographer taking computed tomography scan of female patient.
    White mask with reusable KN95 protection index for virus protection on yellow background — Stock Photo
    White mask with reusable KN95 protection index for virus protection on yellow background
    African boy with protective mask to avoid covid19 — Stock Photo
    African boy with protective mask to avoid covid19
    Chinese woman sitting in car and holding steering wheel — Stock Photo
    Chinese woman sitting in car and holding steering wheel
    Close-up of antibiotic testing in petri dish. — Stock Photo
    Close-up of antibiotic testing in petri dish.
    Red currant berries in test tube, studio shot. — Stock Photo
    Red currant berries in test tube, studio shot.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.
    Crop anonymous doctor in medical glove demonstrating syringe with blood on white background — Stock Photo
    Crop anonymous doctor in medical glove demonstrating syringe with blood on white background
    Male adult engineer in water treatment plant — Stock Photo
    Male adult engineer in water treatment plant
    Side view of male biologist in protective glasses and mask opening bottle with liquid at table in cannabis laboratory — Stock Photo
    Side view of male biologist in protective glasses and mask opening bottle with liquid at table in cannabis laboratory
    Motorcycle mechanic doing diagnostic test on motorcycle in workshop — Stock Photo
    Motorcycle mechanic doing diagnostic test on motorcycle in workshop
    Attentive senior employee writing in notebook results while adult female colleague in sterile clothes using digital device for test food quality in canteen — Stock Photo
    Attentive senior employee writing in notebook results while adult female colleague in sterile clothes using digital device for test food quality in canteen
    Close-up of human blood and various hematology samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various hematology samples in test tubes while screening in medical lab.
    Close-up of laboratory technician working in blood bank — Stock Photo
    Close-up of laboratory technician working in blood bank
    Team of dentists before an operation — Stock Photo
    Team of dentists before an operation