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    Close-up of black Lypusa maurella moth on dried stem. — Stock Photo
    Close-up of black Lypusa maurella moth on dried stem.
    Close-up of Japanese mock orange seed. — Stock Photo
    Close-up of Japanese mock orange seed.
    Musculature of man doing kettlebell workout, conceptual digital illustration. — Stock Photo
    Musculature of man doing kettlebell workout, conceptual digital illustration.
    Human skeleton with red colored Longissimus capitis muscle, computer illustration. — Stock Photo
    Human skeleton with red colored Longissimus capitis muscle, computer illustration.
    Flu virus in trachea, digital illustration. — Stock Photo
    Flu virus in trachea, digital illustration.
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia — Stock Photo
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia
    Broom stem. Light micrograph (LM) of transverse section through stem of common broom (Salicornia europaea) plant. Broom is drought plant (xerophyte) with ribbed stems and branches to increase area for photosynthesis — Stock Photo
    Broom stem. Light micrograph (LM) of transverse section through stem of common broom (Salicornia europaea) plant. Broom is drought plant (xerophyte) with ribbed stems and branches to increase area for photosynthesis
    Illustration of bronchi in male body silhouette. — Stock Photo
    Illustration of bronchi in male body silhouette.
    Close-up of hummingbird hawkmoth on yellow lichens covered branch. — Stock Photo
    Close-up of hummingbird hawkmoth on yellow lichens covered branch.
    Realistic human body model showing male anatomy with internal organs behind ribs, digital illustration. — Stock Photo
    Realistic human body model showing male anatomy with internal organs behind ribs, digital illustration.
    Medical digital illustration of senior man with cardiac pacemaker in heart. — Stock Photo
    Medical digital illustration of senior man with cardiac pacemaker in heart.
    Female transparent body showing spine, digital illustration. — Stock Photo
    Female transparent body showing spine, digital illustration.
    Colored digital illustration of red cancer cells. — Stock Photo
    Colored digital illustration of red cancer cells.
    Female body with visible vascular system, computer illustration. — Stock Photo
    Female body with visible vascular system, computer illustration.
    Transparent human body silhouette with visible hip joints, computer illustration. — Stock Photo
    Transparent human body silhouette with visible hip joints, computer illustration.
    Purkinje cell of brain cerebellum, digital illustration. — Stock Photo
    Purkinje cell of brain cerebellum, digital illustration.
    3d rendered illustration of colored female small intestine in body silhouette. — Stock Photo
    3d rendered illustration of colored female small intestine in body silhouette.
    Realistic digital illustration showing arthritis in human shoulder. — Stock Photo
    Realistic digital illustration showing arthritis in human shoulder.
    Female biology student using light microscope in laboratory. — Stock Photo
    Female biology student using light microscope in laboratory.
    Nerve. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a peripheral nerve. Schwann cells wraps their cell membrane around the nerve a number of times. — Stock Photo
    Nerve. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a peripheral nerve. Schwann cells wraps their cell membrane around the nerve a number of times.
    Female vascular system structure,computer illustration. — Stock Photo
    Female vascular system structure,computer illustration.
    Neutrophil is a granulocyte, a part of the innate immune system. — Stock Photo
    Neutrophil is a granulocyte, a part of the innate immune system.
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of micropipette pipetting blood sample into microcentrifuge tubes.
    Human neck musculature — Stock Photo
    Human neck musculature
    Digital artwork of silhouette with liver and close-up of hepatitis C virus particles. — Stock Photo
    Digital artwork of silhouette with liver and close-up of hepatitis C virus particles.
    Scanning electron micrograph of PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph of PC12 neurone in culture.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Human hand musculature — Stock Photo
    Human hand musculature
    Human anatomy of knee joint, computer illustration. — Stock Photo
    Human anatomy of knee joint, computer illustration.
    Illustration of female silhouette with painful kidney. — Stock Photo
    Illustration of female silhouette with painful kidney.
    Empid fly on frozen branch covered with ice crystals. — Stock Photo
    Empid fly on frozen branch covered with ice crystals.
    Female skeleton with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female skeleton with visible outer intercostal muscles, computer illustration.
    Middle phalanx bones in x-ray computer illustration of human foot. — Stock Photo
    Middle phalanx bones in x-ray computer illustration of human foot.
    Male anatomy showing vascular system, computer illustration. — Stock Photo
    Male anatomy showing vascular system, computer illustration.
    Fertilization of human egg — Stock Photo
    Fertilization of human egg
    Human leg and Knee bones — Stock Photo
    Human leg and Knee bones
    Eggs of parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Eggs of parasitic worm Trichuris trichiura, computer illustration
    Human skeleton with detailed red Gluteus maximus muscle, digital illustration. — Stock Photo
    Human skeleton with detailed red Gluteus maximus muscle, digital illustration.
    Genetically modified plant in petri dish. — Stock Photo
    Genetically modified plant in petri dish.
    Pink colored pancreas in male human body, digital illustration. — Stock Photo
    Pink colored pancreas in male human body, digital illustration.
    Digital illustration of Salmonella Gram-negative rod-shaped bacteria with flagella. — Stock Photo
    Digital illustration of Salmonella Gram-negative rod-shaped bacteria with flagella.
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration. — Stock Photo
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration.
    Man in boxing pose, computer illustration. — Stock Photo
    Man in boxing pose, computer illustration.
    Medical illustration of intestinal villi in human intestine. — Stock Photo
    Medical illustration of intestinal villi in human intestine.
    Human skeleton model with detailed Psoas major muscle, digital illustration. — Stock Photo
    Human skeleton model with detailed Psoas major muscle, digital illustration.
    Mid section illustration of internal organs in male body silhouette. — Stock Photo
    Mid section illustration of internal organs in male body silhouette.
    Female silhouette with visible bladder, digital illustration. — Stock Photo
    Female silhouette with visible bladder, digital illustration.
    Male 3d rendering showing abdominal abs muscles, computer illustration. — Stock Photo
    Male 3d rendering showing abdominal abs muscles, computer illustration.
    Back of the skull, illustration. — Stock Photo
    Back of the skull, illustration.
    Male anatomy showing Teres major muscle, computer illustration. — Stock Photo
    Male anatomy showing Teres major muscle, computer illustration.
    Anatomy of dog kidneys in transparent body, computer illustration. — Stock Photo
    Anatomy of dog kidneys in transparent body, computer illustration.
    Male baseball player muscles while holding bat, computer illustration. — Stock Photo
    Male baseball player muscles while holding bat, computer illustration.
    Human brain nerve cell, computer illustration. — Stock Photo
    Human brain nerve cell, computer illustration.
    Horse skeleton model with detailed Splenius muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Splenius muscle, digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Destruction of a cancer cell by antibodies — Stock Photo
    Destruction of a cancer cell by antibodies
    Blood collection kit — Stock Photo
    Blood collection kit
    Human internal brain anatomy — Stock Photo
    Human internal brain anatomy
    Human skeleton with red colored Transversus abdominis muscle, computer illustration. — Stock Photo
    Human skeleton with red colored Transversus abdominis muscle, computer illustration.