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    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Chemistry apparatus glassware on table in laboratory. — Stock Photo
    Chemistry apparatus glassware on table in laboratory.
    Low angle view of female scientist wearing protective goggles and using device. — Stock Photo
    Low angle view of female scientist wearing protective goggles and using device.
    Human intestine and close-up of Campylobacter jejuni bacteria causing Campylobacteriosis, conceptual illustration. — Stock Photo
    Human intestine and close-up of Campylobacter jejuni bacteria causing Campylobacteriosis, conceptual illustration.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Structural anatomy of human arm — Stock Photo
    Structural anatomy of human arm
    Close-up of verbena wildflower blooming outdoors. — Stock Photo
    Close-up of verbena wildflower blooming outdoors.
    Laboratory sample tubes in rack. — Stock Photo
    Laboratory sample tubes in rack.
    Teacher watching curious students playing with beakers at interactive exhibit in science center — Stock Photo
    Teacher watching curious students playing with beakers at interactive exhibit in science center
    Female scientist opening lid of machine in lab — Stock Photo
    Female scientist opening lid of machine in lab
    Close-up of fungus colony growing on agar plate. — Stock Photo
    Close-up of fungus colony growing on agar plate.
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Retrovirus virion structure and shape — Stock Photo
    Retrovirus virion structure and shape
    Boy student examining DNA model in laboratory classroom — Stock Photo
    Boy student examining DNA model in laboratory classroom
    Human rib cage anatomy — Stock Photo
    Human rib cage anatomy
    Close-up of green chemical sample in glass phial. — Stock Photo
    Close-up of green chemical sample in glass phial.
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Person hand holding petri dish with biological culture. — Stock Photo
    Person hand holding petri dish with biological culture.
    3d illustration of cancer cells attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cells attacked and killed by lymphocytes.
    Entamoeba histolytica invading the intestine — Stock Photo
    Entamoeba histolytica invading the intestine
    Chemists working in laboratory with glassware with colorful liquids. — Stock Photo
    Chemists working in laboratory with glassware with colorful liquids.
    Organs of reproductive system — Stock Photo
    Organs of reproductive system
    Adult Cicadas on white background — Stock Photo
    Adult Cicadas on white background
    House dust mites — Stock Photo
    House dust mites
    Digital illustration of fungal morphology of filamentous allergenic fungus Alternaria alternata and photograph of fungal colonies on Sabouraud Dextrose Agar. — Stock Photo
    Digital illustration of fungal morphology of filamentous allergenic fungus Alternaria alternata and photograph of fungal colonies on Sabouraud Dextrose Agar.
    Attentive male scientist experimenting in laboratory — Stock Photo
    Attentive male scientist experimenting in laboratory
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Pipette dropping liquid to vials. — Stock Photo
    Pipette dropping liquid to vials.
    Curious schoolgirl looking at anatomical model — Stock Photo
    Curious schoolgirl looking at anatomical model
    House dust mites — Stock Photo
    House dust mites
    Haemophilus ducreyi bacteria, digital illustration. — Stock Photo
    Haemophilus ducreyi bacteria, digital illustration.
    College students conducting scientific experiment in science laboratory classroom — Stock Photo
    College students conducting scientific experiment in science laboratory classroom
    Close-up of pipetting sample into row of test tubes during experiment in laboratory. — Stock Photo
    Close-up of pipetting sample into row of test tubes during experiment in laboratory.
    Brain anatomy showing blood supply system — Stock Photo
    Brain anatomy showing blood supply system
    Female scientist writing on clipboard in lab — Stock Photo
    Female scientist writing on clipboard in lab
    Different chemicals in lab — Stock Photo
    Different chemicals in lab
    Stratified cuboidal epithelium, digital illustration. — Stock Photo
    Stratified cuboidal epithelium, digital illustration.
    Group of laboratory test tubes with colored liquids. — Stock Photo
    Group of laboratory test tubes with colored liquids.
    Patient with diverticulitis — Stock Photo
    Patient with diverticulitis
    Human head louse — Stock Photo
    Human head louse
    Planktonic unicellular alga Diploneis sp. — Stock Photo
    Planktonic unicellular alga Diploneis sp.
    High angle view of teenage girl practicing experiment in lab — Stock Photo
    High angle view of teenage girl practicing experiment in lab
    Digital illustration of nanorobot attacking rod-shaped bacterium with laser beam. — Stock Photo
    Digital illustration of nanorobot attacking rod-shaped bacterium with laser beam.
    Hand holding a petri dish. — Stock Photo
    Hand holding a petri dish.
    Structural anatomy of adult human — Stock Photo
    Structural anatomy of adult human
    Person holding a petri dish, studio shot. — Stock Photo
    Person holding a petri dish, studio shot.
    Flying adult female mosquito — Stock Photo
    Flying adult female mosquito
    Close-up male scientist lab machine in laboratory — Stock Photo
    Close-up male scientist lab machine in laboratory
    DNA researcher pipetting into tube with reference in background. — Stock Photo
    DNA researcher pipetting into tube with reference in background.
    Illustration of Jupiter with associated magnetic field. — Stock Photo
    Illustration of Jupiter with associated magnetic field.
    Dual chamber pacemaker — Stock Photo
    Dual chamber pacemaker
    Insects preserved in amber — Stock Photo
    Insects preserved in amber
    Close-up of male scientist experimenting in laboratory — Stock Photo
    Close-up of male scientist experimenting in laboratory
    Cholera bacteria colony — Stock Photo
    Cholera bacteria colony
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Smiling female science teacher and girl student reading textbook at microscope in laboratory classroom — Stock Photo
    Smiling female science teacher and girl student reading textbook at microscope in laboratory classroom
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Male scientist working at computer in laboratory — Stock Photo
    Male scientist working at computer in laboratory
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Bacterial blood infection, digital illustration. — Stock Photo
    Bacterial blood infection, digital illustration.