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    Petri dishes with blood agar on blue background. — Stock Photo
    Petri dishes with blood agar on blue background.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    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.
    Stacks of Petri dishes with cultured agar on plain background. — Stock Photo
    Stacks of Petri dishes with cultured agar on plain background.
    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.
    Petri dishes with blood agar on blue background. — Stock Photo
    Petri dishes with blood agar on blue background.
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Bacterial colonies in petri dish on white background. — Stock Photo
    Bacterial colonies in petri dish on white background.
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Close-up of wasps sitting on hive outdoors — Stock Photo
    Close-up of wasps sitting on hive outdoors
    Microbiological culture growing in Petri dish, close-up. — Stock Photo
    Microbiological culture growing in Petri dish, close-up.
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    Portrait of worker holding blueberries in basket — Stock Photo
    Portrait of worker holding blueberries in basket
    Students in a computer class — Stock Photo
    Students in a computer class
    Students in a computer class — Stock Photo
    Students in a computer class
    Decorative bottles and fresh picked plants — Stock Photo
    Decorative bottles and fresh picked plants
    Close-up of wasps sitting on hive outdoors — Stock Photo
    Close-up of wasps sitting on hive outdoors
    Male hiker and fluffy dog standing on mossy rocks in the mountains — Stock Photo
    Male hiker and fluffy dog standing on mossy rocks in the mountains
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Scientist pipetting sample into growth medium in multiwell plate. — Stock Photo
    Scientist pipetting sample into growth medium in multiwell plate.
    Silhouette cows and farmer on field — Stock Photo
    Silhouette cows and farmer on field
    Boys and girls, swimming and floating — Stock Photo
    Boys and girls, swimming and floating
    Close up of cheerful female hiker against trees — Stock Photo
    Close up of cheerful female hiker against trees
    Children learning about plants and flowers — Stock Photo
    Children learning about plants and flowers
    Woman filling feeding trough for pigs — Stock Photo
    Woman filling feeding trough for pigs
    Petri dishes with blood agar on blue background. — Stock Photo
    Petri dishes with blood agar on blue background.
    Flowers growing on plants — Stock Photo
    Flowers growing on plants
    Students in a computer class — Stock Photo
    Students in a computer class
    Hand holding a petri dish with green growth medium. — Stock Photo
    Hand holding a petri dish with green growth medium.
    Washers and hose pipe — Stock Photo
    Washers and hose pipe
    Stacked agar plates on plain background. — Stock Photo
    Stacked agar plates on plain background.
    Happy mother assisting girl balancing — Stock Photo
    Happy mother assisting girl balancing
    Rustic summer flowers — Stock Photo
    Rustic summer flowers
    Flowers growing on plants — Stock Photo
    Flowers growing on plants
    Flowers growing on plants — Stock Photo
    Flowers growing on plants
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    High angle close-up of tray with succulents planted in gravel in terracotta pots. — Stock Photo
    High angle close-up of tray with succulents planted in gravel in terracotta pots.
    Family enjoying picnic at beach — Stock Photo
    Family enjoying picnic at beach
    Group of pigs in pen — Stock Photo
    Group of pigs in pen
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Ceramic plate and cup with wildflowers and candles — Stock Photo
    Ceramic plate and cup with wildflowers and candles
    Petri dish with blood agar on blue background. — Stock Photo
    Petri dish with blood agar on blue background.
    Students in a computer class — Stock Photo
    Students in a computer class
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    High angle close-up of tray with succulents planted in gravel in terracotta pots. — Stock Photo
    High angle close-up of tray with succulents planted in gravel in terracotta pots.
    Stacks of Petri dishes with cultured agar on plain background. — Stock Photo
    Stacks of Petri dishes with cultured agar on plain background.
    Happy girl sitting on wooden sculpture — Stock Photo
    Happy girl sitting on wooden sculpture
    Cows grazing on grassy field — Stock Photo
    Cows grazing on grassy field
    Petri dishes with blood agar on blue background. — Stock Photo
    Petri dishes with blood agar on blue background.
    Flowers growing on plants — Stock Photo
    Flowers growing on plants
    Students in a computer class — Stock Photo
    Students in a computer class