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    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Girl sitting on ground tying her shoelaces — Stock Photo
    Girl sitting on ground tying her shoelaces
    Girl holding water melon. — Stock Photo
    Girl holding water melon.
    Creative business people meeting with coffee and paperwork in circle of chairs — Stock Photo
    Creative business people meeting with coffee and paperwork in circle of chairs
    Team cheering woman doing speed ladder drill in sunny park — Stock Photo
    Team cheering woman doing speed ladder drill in sunny park
    Torovirus structure, illustration. Toroviruses have a doughnut-shaped structure consisting of an outer envelope (dark blue) with spike proteins (yellow) — Stock Photo
    Torovirus structure, illustration. Toroviruses have a doughnut-shaped structure consisting of an outer envelope (dark blue) with spike proteins (yellow)
    Front view mid section of an athletic man wearing sports clothes cross training at a gym, sitting with knees up, exercising on a rowing machine — Stock Photo
    Front view mid section of an athletic man wearing sports clothes cross training at a gym, sitting with knees up, exercising on a rowing machine
    Cropped image of woman using exercising ladder in park — Stock Photo
    Cropped image of woman using exercising ladder in park
    Cross-section of the human eye, 3d illustration. — Stock Photo
    Cross-section of the human eye, 3d illustration.
    Mid section of female boxer using mobile phone in fitness studio — Stock Photo
    Mid section of female boxer using mobile phone in fitness studio
    A pot of natural yogurt with kiwi and fresh mint — Stock Photo
    A pot of natural yogurt with kiwi and fresh mint
    Woman using a laptop computer. — Stock Photo
    Woman using a laptop computer.
    Section through the cerebellum in the brain — Stock Photo
    Section through the cerebellum in the brain
    Human heart anatomy showing bicuspid valve, illustration. — Stock Photo
    Human heart anatomy showing bicuspid valve, illustration.
    Human heart anatomy — Stock Photo
    Human heart anatomy
    Human skull mid sagittal cross-section with brain in front view on white background. — Stock Photo
    Human skull mid sagittal cross-section with brain in front view on white background.
    Longitudinal section of human foot in a sagittal plane — Stock Photo
    Longitudinal section of human foot in a sagittal plane
    Half of honeydew melon on white background. — Stock Photo
    Half of honeydew melon on white background.
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma. — Stock Photo
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma.
    Croissants with chocolate and nuts filling — Stock Photo
    Croissants with chocolate and nuts filling
    Computer tablet with instructions and recipe. — Stock Photo
    Computer tablet with instructions and recipe.
    Human brain cross-section — Stock Photo
    Human brain cross-section
    Human brain cross-section — Stock Photo
    Human brain cross-section
    Chocolate candies with colorful glaze — Stock Photo
    Chocolate candies with colorful glaze
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut — Stock Photo
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut
    Human heart anatomy showing valves, cross section illustration. — Stock Photo
    Human heart anatomy showing valves, cross section illustration.
    Human skull transversal cross-section and bottom view on black background. — Stock Photo
    Human skull transversal cross-section and bottom view on black background.
    Medical ilustration of a pilonidal cyst near the natal cleft of the buttocks — Stock Photo
    Medical ilustration of a pilonidal cyst near the natal cleft of the buttocks
    Diagram of theoretical interior of gas giant planet Jupiter. — Stock Photo
    Diagram of theoretical interior of gas giant planet Jupiter.
    3d illustration of cross-section of ebola pathogen. — Stock Photo
    3d illustration of cross-section of ebola pathogen.
    Human skin anatomy and blood supply — Stock Photo
    Human skin anatomy and blood supply
    Illustration of human spinal vertebra on white background. — Stock Photo
    Illustration of human spinal vertebra on white background.
    Male diagram x-ray nervous system on black background. — Stock Photo
    Male diagram x-ray nervous system on black background.
    Series of MRI brain scans — Stock Photo
    Series of MRI brain scans
    Cross-section of molar tooth, digital illustration. — Stock Photo
    Cross-section of molar tooth, digital illustration.
    Cake with buttercream icing and fruit sliced in half — Stock Photo
    Cake with buttercream icing and fruit sliced in half
    Round cakes with cream decoration on black background — Stock Photo
    Round cakes with cream decoration on black background
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Mid section of man with a bag crossing the street — Stock Photo
    Mid section of man with a bag crossing the street
    Large intestine showing diverticulitis — Stock Photo
    Large intestine showing diverticulitis
    Human skull mid sagittal cross-section, side view on white background. — Stock Photo
    Human skull mid sagittal cross-section, side view on white background.
    Insulin binding to insulin receptor — Stock Photo
    Insulin binding to insulin receptor
    Pathological anatomy of Ventral hernia — Stock Photo
    Pathological anatomy of Ventral hernia
    Visual render of Human skin anatomy — Stock Photo
    Visual render of Human skin anatomy
    Fresh cut papaya with lime on plate — Stock Photo
    Fresh cut papaya with lime on plate
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors. — Stock Photo
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors.
    Bone tissue production — Stock Photo
    Bone tissue production
    Medical illustration of the female breast anatomy — Stock Photo
    Medical illustration of the female breast anatomy
    Cross section of an egg — Stock Photo
    Cross section of an egg
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull. — Stock Photo
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull.
    Human kidney tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human kidney tissue, light micrograph. Haematoxylin and eosin stain.
    Human eye anatomy, computer illustration. — Stock Photo
    Human eye anatomy, computer illustration.
    Nerve cell structure in cross section on black background, digital illustration. — Stock Photo
    Nerve cell structure in cross section on black background, digital illustration.
    Human skin anatomy — Stock Photo
    Human skin anatomy
    Illustration of human spinal vertebra on white background. — Stock Photo
    Illustration of human spinal vertebra on white background.
    Spinal cord anatomy — Stock Photo
    Spinal cord anatomy
    Teenage girls sitting at edge of ramp — Stock Photo
    Teenage girls sitting at edge of ramp
    Close-up of person hands holding pumpkin with orange flesh cut in half. — Stock Photo
    Close-up of person hands holding pumpkin with orange flesh cut in half.
    Slice of fresh carrot — Stock Photo
    Slice of fresh carrot
    Mid-section of businessman standing with arms crossed in train — Stock Photo
    Mid-section of businessman standing with arms crossed in train