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    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Digital illustration of human digestive system and close-up of intestinal bacteria. — Stock Photo
    Digital illustration of human digestive system and close-up of intestinal bacteria.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Pegomya bicolor fly from dorsal view at tip of grass blade. — Stock Photo
    Pegomya bicolor fly from dorsal view at tip of grass blade.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Close-up of bee fly on rose rhapsody flower. — Stock Photo
    Close-up of bee fly on rose rhapsody flower.
    Atlas bone in human skeleton, computer illustration. — Stock Photo
    Atlas bone in human skeleton, computer illustration.
    Illustration of senior man silhouette with visible kidneys. — Stock Photo
    Illustration of senior man silhouette with visible kidneys.
    Structural anatomy of human pelvis — Stock Photo
    Structural anatomy of human pelvis
    Human skeleton with red colored Internal oblique muscle, computer illustration. — Stock Photo
    Human skeleton with red colored Internal oblique muscle, computer illustration.
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown) — Stock Photo
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown)
    Female skeleton in transparent body silhouette, digital illustration. — Stock Photo
    Female skeleton in transparent body silhouette, digital illustration.
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    Dementia, conceptual computer illustration — Stock Photo
    Dementia, conceptual computer illustration
    Abstract silhouette of muscular man, digital illustration. — Stock Photo
    Abstract silhouette of muscular man, digital illustration.
    Digital illustration of cervical spine in senior man body. — Stock Photo
    Digital illustration of cervical spine in senior man body.
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory.
    Human artery showing artery walls and bloodstream — Stock Photo
    Human artery showing artery walls and bloodstream
    3d rendered illustration of thorax bones in human skeleton. — Stock Photo
    3d rendered illustration of thorax bones in human skeleton.
    Light micrograph of onion (Allium cepa) root tip cells undergoing mitosis (nuclear division). — Stock Photo
    Light micrograph of onion (Allium cepa) root tip cells undergoing mitosis (nuclear division).
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Human Teeth, computer illustration — Stock Photo
    Human Teeth, computer illustration
    Anatomy of nerves of shoulder in male body silhouette, computer illustration. — Stock Photo
    Anatomy of nerves of shoulder in male body silhouette, computer illustration.
    Male body with visible neck pain, conceptual illustration. — Stock Photo
    Male body with visible neck pain, conceptual illustration.
    Human brain on white background, digital illustration. — Stock Photo
    Human brain on white background, digital illustration.
    3d rendered abstract illustration of pink nerve cell. — Stock Photo
    3d rendered abstract illustration of pink nerve cell.
    Computer illustration of bacteria on the surface of intestinal villi — Stock Photo
    Computer illustration of bacteria on the surface of intestinal villi
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Illustration of spleen cancer in male body silhouette on black background. — Stock Photo
    Illustration of spleen cancer in male body silhouette on black background.
    Parasitic louse on human head skin, digital illustration. — Stock Photo
    Parasitic louse on human head skin, digital illustration.
    Human skeleton with shoulder joint, digital illustration. — Stock Photo
    Human skeleton with shoulder joint, digital illustration.
    Human embryonic stem cells, digital illustration. — Stock Photo
    Human embryonic stem cells, digital illustration.
    Illustration of silhouette of obese man with painful kidney. — Stock Photo
    Illustration of silhouette of obese man with painful kidney.
    Male skeleton and ligaments in transparent body, computer illustration. — Stock Photo
    Male skeleton and ligaments in transparent body, computer illustration.
    Vascular system of female human head, computer illustration. — Stock Photo
    Vascular system of female human head, computer illustration.
    Acetic acid bacteria — Stock Photo
    Acetic acid bacteria
    Close-up of tachinid fly perched on wild plant. — Stock Photo
    Close-up of tachinid fly perched on wild plant.
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical) — Stock Photo
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical)
    Leg and foot bones — Stock Photo
    Leg and foot bones
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis — Stock Photo
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis
    Male body silhouette showing heart anatomy, computer illustration. — Stock Photo
    Male body silhouette showing heart anatomy, computer illustration.
    Anatomy of dog colon in transparent body, computer illustration. — Stock Photo
    Anatomy of dog colon in transparent body, computer illustration.
    Arteries in transparent dog body, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, anatomical computer illustration.
    3d rendered illustration of biker brain on black background. — Stock Photo
    3d rendered illustration of biker brain on black background.
    Abstract male figure with detailed Carpi radialis brevis muscle, computer illustration. — Stock Photo
    Abstract male figure with detailed Carpi radialis brevis muscle, computer illustration.
    Transparent body model showing male anatomy and internal organs, digital illustration. — Stock Photo
    Transparent body model showing male anatomy and internal organs, digital illustration.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Male anatomy and muscular system, computer illustration. — Stock Photo
    Male anatomy and muscular system, computer illustration.
    Light micrograph of adipose tissue containing large lipid droplet. — Stock Photo
    Light micrograph of adipose tissue containing large lipid droplet.
    Close-up of brown jewel beetle sitting on branch. — Stock Photo
    Close-up of brown jewel beetle sitting on branch.
    Physical male figure with detailed Pectoralis minor muscle, digital illustration. — Stock Photo
    Physical male figure with detailed Pectoralis minor muscle, digital illustration.
    Fat cell. Coloured scanning electron micrograph (SEM) of part of a fat-storing cell (adipocytes). Fat cells are one of the largest cell types in the human body, each cell being 100 to 120 microns in diameter — Stock Photo
    Fat cell. Coloured scanning electron micrograph (SEM) of part of a fat-storing cell (adipocytes). Fat cells are one of the largest cell types in the human body, each cell being 100 to 120 microns in diameter
    Human skeleton model with detailed Vastus intermedius muscle, computer illustration. — Stock Photo
    Human skeleton model with detailed Vastus intermedius muscle, computer illustration.
    Four-armed chromosomes — Stock Photo
    Four-armed chromosomes
    HIV virus, illustration — Stock Photo
    HIV virus, illustration
    Human skeleton model with detailed Pectoralis minor muscle, digital illustration. — Stock Photo
    Human skeleton model with detailed Pectoralis minor muscle, digital illustration.
    Illustration of red glowing transparent glass brain. — Stock Photo
    Illustration of red glowing transparent glass brain.
    Gastrointestinal system of an adult — Stock Photo
    Gastrointestinal system of an adult
    Hippocampus neurons structure, digital artwork. — Stock Photo
    Hippocampus neurons structure, digital artwork.