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    Close-up of branch of autumnal leaves in boy hand. — Stock Photo
    Close-up of branch of autumnal leaves in boy hand.
    Model of human teeth — Stock Photo
    Model of human teeth
    Burning Bunsen burner on black background. — Stock Photo
    Burning Bunsen burner on black background.
    Scientific laboratory researcher using test tube and microscope. — Stock Photo
    Scientific laboratory researcher using test tube and microscope.
    Biotechnology female scientist working in laboratory. — Stock Photo
    Biotechnology female scientist working in laboratory.
    Morphine binding to opioid receptors, digital illustration. — Stock Photo
    Morphine binding to opioid receptors, digital illustration.
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom — Stock Photo
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom
    Female scientist researching sample in laboratory. — Stock Photo
    Female scientist researching sample in laboratory.
    Illustration of human bronchi in body silhouette. — Stock Photo
    Illustration of human bronchi in body silhouette.
    Abstract male silhouette with visible thoracic spine, computer illustration. — Stock Photo
    Abstract male silhouette with visible thoracic spine, computer illustration.
    Illustration of human anatomy on white background. — Stock Photo
    Illustration of human anatomy on white background.
    Modern science center building and Tigutorn Tower in Tartu, Estonia, Europe — Stock Photo
    Modern science center building and Tigutorn Tower in Tartu, Estonia, Europe
    Chinese children looking and interacting at exhibition in museum — Stock Photo
    Chinese children looking and interacting at exhibition in museum
    Abstract male silhouette with hips bones, computer illustration. — Stock Photo
    Abstract male silhouette with hips bones, computer illustration.
    Curious boy examining molecule model in laboratory classroom — Stock Photo
    Curious boy examining molecule model in laboratory classroom
    Mid section illustration of kidney cancer in male body silhouette. — Stock Photo
    Mid section illustration of kidney cancer in male body silhouette.
    Stent and balloon catheter for implantation into blood vessel, digital illustration. — Stock Photo
    Stent and balloon catheter for implantation into blood vessel, digital illustration.
    Illustration of fingers bones in human skeleton. — Stock Photo
    Illustration of fingers bones in human skeleton.
    Curious kids watching multicolor foam in beakers — Stock Photo
    Curious kids watching multicolor foam in beakers
    Visible skeleton in female body silhouette on black background, computer illustration. — Stock Photo
    Visible skeleton in female body silhouette on black background, computer illustration.
    Diseased bladder in transparent female body model, conceptual illustration. — Stock Photo
    Diseased bladder in transparent female body model, conceptual illustration.
    Male anatomy showing Risorius muscle, computer illustration. — Stock Photo
    Male anatomy showing Risorius muscle, computer illustration.
    Kids playing at interactive exhibit in science center — Stock Photo
    Kids playing at interactive exhibit in science center
    Abstract female body with visible back bones, computer illustration. — Stock Photo
    Abstract female body with visible back bones, computer illustration.
    Brain-eating amoeba Naegleria fowleri protozoans in trophozoite form, digital illustration. — Stock Photo
    Brain-eating amoeba Naegleria fowleri protozoans in trophozoite form, digital illustration.
    Illustration of kidney tumour in transparent male silhouette. — Stock Photo
    Illustration of kidney tumour in transparent male silhouette.
    Male anatomy showing Auricularis muscle, computer illustration. — Stock Photo
    Male anatomy showing Auricularis muscle, computer illustration.
    3d illustration of flu pathogen in cross-section. — Stock Photo
    3d illustration of flu pathogen in cross-section.
    Transparent female body with colored liver, computer illustration. — Stock Photo
    Transparent female body with colored liver, computer illustration.
    Illustration of senior woman silhouette showing lungs on black background. — Stock Photo
    Illustration of senior woman silhouette showing lungs on black background.
    Portrait cute boys hugging in science center — Stock Photo
    Portrait cute boys hugging in science center
    Abstract female pelvic bones, computer illustration. — Stock Photo
    Abstract female pelvic bones, computer illustration.
    Illustration of human skeletal pelvis on white background. — Stock Photo
    Illustration of human skeletal pelvis on white background.
    Male anatomy showing Rhomboid major muscle, computer illustration. — Stock Photo
    Male anatomy showing Rhomboid major muscle, computer illustration.
    3d illustration of female body with red liver, computer illustration. — Stock Photo
    3d illustration of female body with red liver, computer illustration.
    College students raising hands in science laboratory classroom — Stock Photo
    College students raising hands in science laboratory classroom
    3d illustration of cross-section of ebola pathogen. — Stock Photo
    3d illustration of cross-section of ebola pathogen.
    Female musculature in transparent body, computer illustration. — Stock Photo
    Female musculature in transparent body, computer illustration.
    Illustration of senior woman blue silhouette with highlighted larynx on black background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted larynx on black background.
    Female body with visible musculature, digital illustration. — Stock Photo
    Female body with visible musculature, digital illustration.
    Male anatomy showing Deltoid muscle, computer illustration. — Stock Photo
    Male anatomy showing Deltoid muscle, computer illustration.
    3d anatomical model demonstrating female anatomy and internal organs in obese body in front view, computer illustration. — Stock Photo
    3d anatomical model demonstrating female anatomy and internal organs in obese body in front view, computer illustration.
    Illustration of spleen in male body silhouette on black background. — Stock Photo
    Illustration of spleen in male body silhouette on black background.
    Illustration of back bones in human skeleton. — Stock Photo
    Illustration of back bones in human skeleton.
    Illustration of senior woman blue silhouette with highlighted bladder on black background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted bladder on black background.
    Diseased bladder in transparent female body model, conceptual illustration. — Stock Photo
    Diseased bladder in transparent female body model, conceptual illustration.
    Transparent male silhouette with visible adrenal glands, computer illustration. — Stock Photo
    Transparent male silhouette with visible adrenal glands, computer illustration.
    Illustration of cross section of intestine on white background. — Stock Photo
    Illustration of cross section of intestine on white background.
    High angle view of teenage girl practicing experiment in lab — Stock Photo
    High angle view of teenage girl practicing experiment in lab
    Female students analyzing results of experiments — Stock Photo
    Female students analyzing results of experiments
    Male anatomy showing Superior gemellus muscle, computer illustration. — Stock Photo
    Male anatomy showing Superior gemellus muscle, computer illustration.
    Lower leg bones in x-ray computer illustration of human body. — Stock Photo
    Lower leg bones in x-ray computer illustration of human body.
    3d rendered illustration of anterior cruciate ligament in human skeleton. — Stock Photo
    3d rendered illustration of anterior cruciate ligament in human skeleton.
    Young male scientist working in laboratory with glassware. — Stock Photo
    Young male scientist working in laboratory with glassware.
    Visible skeleton in female body silhouette in front view, computer illustration. — Stock Photo
    Visible skeleton in female body silhouette in front view, computer illustration.
    Illustration of senior woman silhouette showing heart on black background. — Stock Photo
    Illustration of senior woman silhouette showing heart on black background.
    Abstract female body with visible back bones, computer illustration. — Stock Photo
    Abstract female body with visible back bones, computer illustration.
    Teacher and schoolgirl using laptop in science center — Stock Photo
    Teacher and schoolgirl using laptop in science center
    Illustration of senior woman blue silhouette with highlighted kidneys on white background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted kidneys on white background.
    Illustration of senior woman blue silhouette with highlighted gallbladder on black background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted gallbladder on black background.