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    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp.
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Activated platelets with canalicular system — Stock Photo
    Activated platelets with canalicular system
    Nanostructures formed on nickel surface — Stock Photo
    Nanostructures formed on nickel surface
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    White blood cells — Stock Photo
    White blood cells
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Marine planktonic unicellular alga — Stock Photo
    Marine planktonic unicellular alga
    Section of a flower bud — Stock Photo
    Section of a flower bud
    White blood cells — Stock Photo
    White blood cells
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Endictya oceanica diatom — Stock Photo
    Endictya oceanica diatom
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp.
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Human blood cells — Stock Photo
    Human blood cells
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria. — Stock Photo
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria.
    Activated T lymphocytes and red blood cells on scanning electron micrograph. — Stock Photo
    Activated T lymphocytes and red blood cells on scanning electron micrograph.
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Stomach infected with parasitic nematode worms — Stock Photo
    Stomach infected with parasitic nematode worms
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Metastatic breast cancer — Stock Photo
    Metastatic breast cancer
    Pit formed on metal or semiconductor surface — Stock Photo
    Pit formed on metal or semiconductor surface
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    Nanostructures formed on a titanium surface — Stock Photo
    Nanostructures formed on a titanium surface
    Liver fluke Clonorchis sinensis — Stock Photo
    Liver fluke Clonorchis sinensis
    Stratified cuboidal epithelium, digital illustration. — Stock Photo
    Stratified cuboidal epithelium, digital illustration.
    Light microscope objective lenses in laboratory. — Stock Photo
    Light microscope objective lenses in laboratory.
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Woodland skipper butterfly compound eye — Stock Photo
    Woodland skipper butterfly compound eye
    Lung cancer cells — Stock Photo
    Lung cancer cells
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Hoverfly head anatomy — Stock Photo
    Hoverfly head anatomy
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Light micrograph of rectal papilloma on white background, — Stock Photo
    Light micrograph of rectal papilloma on white background,
    Colored scanning electron micrograph of surface of human fallopian tube with epithelium of columnar cells with cilia. — Stock Photo
    Colored scanning electron micrograph of surface of human fallopian tube with epithelium of columnar cells with cilia.
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Dental floss with cheek cells — Stock Photo
    Dental floss with cheek cells
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Human blood cells — Stock Photo
    Human blood cells
    Male sex cell — Stock Photo
    Male sex cell
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Simple cuboidal epithelium, digital illustration. — Stock Photo
    Simple cuboidal epithelium, digital illustration.
    Scanning electron micrograph (SEM) of a PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph (SEM) of a PC12 neurone in culture.
    Simple columnar epithelium, digital illustration. — Stock Photo
    Simple columnar epithelium, digital illustration.
    Illustration of Lactobacillus colony — Stock Photo
    Illustration of Lactobacillus colony
    Photosynthetic Navicula sp. diatom — Stock Photo
    Photosynthetic Navicula sp. diatom