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    Parasitic head louse on human hair — Stock Photo
    Parasitic head louse on human hair
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow) — Stock Photo
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow)
    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.
    Transparent female body with colored liver, computer illustration. — Stock Photo
    Transparent female body with colored liver, computer illustration.
    Human heart model on blue background, computer illustration. — Stock Photo
    Human heart model on blue background, computer illustration.
    Human skeleton with red colored Rectus femoris muscle, digital illustration. — Stock Photo
    Human skeleton with red colored Rectus femoris muscle, digital illustration.
    Illustration of heart in male body silhouette on black background. — Stock Photo
    Illustration of heart in male body silhouette on black background.
    Colored mammary glands in female abstract body, digital illustration. — Stock Photo
    Colored mammary glands in female abstract body, digital illustration.
    Scientist pipetting sample into growth medium in multiwell plate. — Stock Photo
    Scientist pipetting sample into growth medium in multiwell plate.
    Sheep dog walking past lambs — Stock Photo
    Sheep dog walking past lambs
    Male anatomy with visible colored kidneys, computer illustration. — Stock Photo
    Male anatomy with visible colored kidneys, computer illustration.
    3d rendered illustration of male cyclist anatomy on black background. — Stock Photo
    3d rendered illustration of male cyclist anatomy on black background.
    Transparent male silhouette with colored kidneys, computer illustration. — Stock Photo
    Transparent male silhouette with colored kidneys, computer illustration.
    Digital illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Salmonella, Shigella. — Stock Photo
    Digital illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Salmonella, Shigella.
    Test tubes, computer illustration — Stock Photo
    Test tubes, computer illustration
    Coronavirus particle, computer illustration — Stock Photo
    Coronavirus particle, computer illustration
    Digital illustration of painful temporomandibular joint in human skeleton. — Stock Photo
    Digital illustration of painful temporomandibular joint in human skeleton.
    Red colored gallbladder in female body silhouette on blue background, digital illustration. — Stock Photo
    Red colored gallbladder in female body silhouette on blue background, digital illustration.
    Illustration of transparent blue silhouette of male body with colored bladder. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored bladder.
    Dog silhouette with red colored bladder on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored bladder on black background, digital illustration.
    Enteroviruses and neuron — Stock Photo
    Enteroviruses and neuron
    Abstract male silhouette with visible hip pain, digital illustration. — Stock Photo
    Abstract male silhouette with visible hip pain, digital illustration.
    Brucella bacteria, illustration. Brucella is a Gram negative, non-sporing, aerobic bacillus (rod- shaped bacteria) — Stock Photo
    Brucella bacteria, illustration. Brucella is a Gram negative, non-sporing, aerobic bacillus (rod- shaped bacteria)
    African swine fever virus, illustration. This virus is member of iridovirus group that causes African swine fever, haemorrhagic fever in pigs that has high mortality rate — Stock Photo
    African swine fever virus, illustration. This virus is member of iridovirus group that causes African swine fever, haemorrhagic fever in pigs that has high mortality rate
    Green coli bacteria on plain background, digital illustration. — Stock Photo
    Green coli bacteria on plain background, digital illustration.
    Dog anatomy with visible organs on black background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on black background, digital illustration.
    Illustration of human foetus on week 30 term. — Stock Photo
    Illustration of human foetus on week 30 term.
    Illustration of human skeleton on white background. — Stock Photo
    Illustration of human skeleton on white background.
    Human brain cross-section — Stock Photo
    Human brain cross-section
    Schoolboy using glassware and equipment in school laboratory. — Stock Photo
    Schoolboy using glassware and equipment in school laboratory.
    Female silhouette showing nerves of nervous system, computer illustration — Stock Photo
    Female silhouette showing nerves of nervous system, computer illustration
    Abstract male silhouette with visible human skull, side view, computer illustration. — Stock Photo
    Abstract male silhouette with visible human skull, side view, computer illustration.
    Abstract man having finger pain, conceptual illustration. — Stock Photo
    Abstract man having finger pain, conceptual illustration.
    Illustration of small intestine in transparent male silhouette. — Stock Photo
    Illustration of small intestine in transparent male silhouette.
    Illustration of female silhouette with highlighted mammary glands cancer. — Stock Photo
    Illustration of female silhouette with highlighted mammary glands cancer.
    B-lymphocyte cells, computer illustration — Stock Photo
    B-lymphocyte cells, computer illustration
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3) — Stock Photo
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3)
    Rift Valley fever virus particles, computer illustration. — Stock Photo
    Rift Valley fever virus particles, computer illustration.
    Female musculature in transparent silhouette, digital illustration. — Stock Photo
    Female musculature in transparent silhouette, digital illustration.
    Male anatomy showing Brachioradialis muscle, computer illustration. — Stock Photo
    Male anatomy showing Brachioradialis muscle, computer illustration.
    Human brain anatomy — Stock Photo
    Human brain anatomy
    Blastomyces dermatitis fungus in yeast form, digital illustration. — Stock Photo
    Blastomyces dermatitis fungus in yeast form, digital illustration.
    Human skeleton part with detailed Soleus muscle, digital illustration. — Stock Photo
    Human skeleton part with detailed Soleus muscle, digital illustration.
    Coloured scanning electron micrograph of Phasmarhabditis hermaphrodita microscopic nematode parasite of Rhabditidae. — Stock Photo
    Coloured scanning electron micrograph of Phasmarhabditis hermaphrodita microscopic nematode parasite of Rhabditidae.
    Close-up of pipetting colorful liquids into test tubes. — Stock Photo
    Close-up of pipetting colorful liquids into test tubes.
    Illustration of senior man silhouette with visible larynx. — Stock Photo
    Illustration of senior man silhouette with visible larynx.
    Horse skeleton model with detailed Sternohyoideus muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Sternohyoideus muscle, digital illustration.
    Male head and neck anatomy, digital illustration. — Stock Photo
    Male head and neck anatomy, digital illustration.
    Portrait of lioness looking away in Ngorongoro, Tanzania. — Stock Photo
    Portrait of lioness looking away in Ngorongoro, Tanzania.
    Activated platelets in blood flow, illustration. — Stock Photo
    Activated platelets in blood flow, illustration.
    Human Brain, computer illustration — Stock Photo
    Human Brain, computer illustration
    Human heart with valves, digital illustration. — Stock Photo
    Human heart with valves, digital illustration.
    Shoulder bones in x-ray digital illustration of human body. — Stock Photo
    Shoulder bones in x-ray digital illustration of human body.
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    DNA strand with damage, conceptual digital illustration. — Stock Photo
    DNA strand with damage, conceptual digital illustration.
    Male body silhouette showing heart anatomy, computer illustration. — Stock Photo
    Male body silhouette showing heart anatomy, computer illustration.
    Digital illustration of adrenal glands in senior man body. — Stock Photo
    Digital illustration of adrenal glands in senior man body.
    Male anatomy showing Quadratus femoris muscle, computer illustration. — Stock Photo
    Male anatomy showing Quadratus femoris muscle, computer illustration.
    Old English rose, X-ray. — Stock Photo
    Old English rose, X-ray.