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    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Microbiologist inspecting petri dish and observing bacteria growth. — Stock Photo
    Microbiologist inspecting petri dish and observing bacteria growth.
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Hands of female microbiologist pipetting sample in laboratory. — Stock Photo
    Hands of female microbiologist pipetting sample in laboratory.
    Female microbiologist working in laboratory with test tubes. — Stock Photo
    Female microbiologist working in laboratory with test tubes.
    Microbiologist working in laboratory with bacteria growth in petri dish. — Stock Photo
    Microbiologist working in laboratory with bacteria growth in petri dish.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Female cell biologist placing flask containing stem cells cultivated in red growth medium under microscope. — Stock Photo
    Female cell biologist placing flask containing stem cells cultivated in red growth medium under microscope.
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Scientist pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Scientist selecting human blood sample in laboratory. — Stock Photo
    Scientist selecting human blood sample in laboratory.
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope in laboratory.
    Biologist hand with protective glove holding trowel with soil above samples separated in containers. — Stock Photo
    Biologist hand with protective glove holding trowel with soil above samples separated in containers.
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter. — Stock Photo
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter.
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope in laboratory.
    Female agronomist taking notes in field of soil. — Stock Photo
    Female agronomist taking notes in field of soil.
    Illustration of Saturn planet with rings in black space background. — Stock Photo
    Illustration of Saturn planet with rings in black space background.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Female agronomist measuring soil temperature with thermometer in field. — Stock Photo
    Female agronomist measuring soil temperature with thermometer in field.
    Female scientist in laboratory looking at glass flask with dissolved samples of soil. — Stock Photo
    Female scientist in laboratory looking at glass flask with dissolved samples of soil.
    Illustration of 4 cell stage egg on black background. — Stock Photo
    Illustration of 4 cell stage egg on black background.
    Forensic evidence collection with knife for DNA forensic test. — Stock Photo
    Forensic evidence collection with knife for DNA forensic test.
    Female agronomist taking sample with soil probe sampler. — Stock Photo
    Female agronomist taking sample with soil probe sampler.
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter. — Stock Photo
    Hands of scientist in laboratory measuring pH of soil samples by electronic pH meter.
    Illustration of sperm fertilizing human egg cell. — Stock Photo
    Illustration of sperm fertilizing human egg cell.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Female scientist measuring PH of soil samples with litmus strips. — Stock Photo
    Female scientist measuring PH of soil samples with litmus strips.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Agronomy specialist taking soil sample for fertility analysis. — Stock Photo
    Agronomy specialist taking soil sample for fertility analysis.
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    Illustration of pink stem cell on black background. — Stock Photo
    Illustration of pink stem cell on black background.
    Agronomy specialist taking soil sample for fertility analysis. — Stock Photo
    Agronomy specialist taking soil sample for fertility analysis.
    Scientist pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Female biologist pouring water into test tube with dissolved samples of soil in laboratory. — Stock Photo
    Female biologist pouring water into test tube with dissolved samples of soil in laboratory.
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene. — Stock Photo
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene.
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    Close-up of female scientist taking notes in soil testing laboratory. — Stock Photo
    Close-up of female scientist taking notes in soil testing laboratory.
    Female biologist in white coat pouring water into test tube with dissolved samples of soil in laboratory. — Stock Photo
    Female biologist in white coat pouring water into test tube with dissolved samples of soil in laboratory.
    Female agronomist taking notes in field of soil. — Stock Photo
    Female agronomist taking notes in field of soil.
    Illustration of pink stem cell on blue background. — Stock Photo
    Illustration of pink stem cell on blue background.
    Illustration of yellow human egg cell on blue background. — Stock Photo
    Illustration of yellow human egg cell on blue background.
    Female scientist in white coat measuring PH of soil sample with litmus strips. — Stock Photo
    Female scientist in white coat measuring PH of soil sample with litmus strips.
    Female agronomist taking sample with soil probe sampler. — Stock Photo
    Female agronomist taking sample with soil probe sampler.
    Scientist viewing multi well plate containing samples for testing in laboratory. — Stock Photo
    Scientist viewing multi well plate containing samples for testing in laboratory.
    Hands in gloves of female scientist in laboratory shaking glass flask with dissolved samples of soil. — Stock Photo
    Hands in gloves of female scientist in laboratory shaking glass flask with dissolved samples of soil.
    Pills and capsules in test tube on grey background. — Stock Photo
    Pills and capsules in test tube on grey background.
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Accident during experiment with broken laboratory glassware flask. — Stock Photo
    Accident during experiment with broken laboratory glassware flask.
    Illustration of pink stem cells on blue background. — Stock Photo
    Illustration of pink stem cells on blue background.
    Female agronomist taking notes in field of soil. — Stock Photo
    Female agronomist taking notes in field of soil.
    Female scientist in white coat taking notes in soil testing laboratory. — Stock Photo
    Female scientist in white coat taking notes in soil testing laboratory.
    Illustration of human egg cell and sperm on blue background. — Stock Photo
    Illustration of human egg cell and sperm on blue background.
    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.
    Accident during experiment with broken laboratory glassware flask. — Stock Photo
    Accident during experiment with broken laboratory glassware flask.
    Close-up of biologist pouring water into containers with soil samples. — Stock Photo
    Close-up of biologist pouring water into containers with soil samples.
    Illustration of motor protein cellular structure. — Stock Photo
    Illustration of motor protein cellular structure.
    Female agronomist taking sample with soil probe sampler. — Stock Photo
    Female agronomist taking sample with soil probe sampler.
    Illustration of Saturn planet with rings in black space background. — Stock Photo
    Illustration of Saturn planet with rings in black space background.
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene. — Stock Photo
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene.
    Agronomist putting soil with garden shovel in soil sample bag. — Stock Photo
    Agronomist putting soil with garden shovel in soil sample bag.