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167 results

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    Woman talking on cell phone with automobile hood raised at roadside — Stock Photo
    Woman talking on cell phone with automobile hood raised at roadside
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Enterococcus bacteria colony — Stock Photo
    Enterococcus bacteria colony
    3d rendering of a virus — Stock Photo
    3d rendering of a virus
    Illustration of single human blood cell on black background. — Stock Photo
    Illustration of single human blood cell on black background.
    Paramecium ciliate protozoan — Stock Photo
    Paramecium ciliate protozoan
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    3d illustration of transparent and colorful protozoan on blue background. — Stock Photo
    3d illustration of transparent and colorful protozoan on blue background.
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Soap bubbles and acrylic paint in oil — Stock Photo
    Soap bubbles and acrylic paint in oil
    Illustration of single human blood cell on white background. — Stock Photo
    Illustration of single human blood cell on white background.
    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Helicobacter pyloris bacteria — Stock Photo
    Helicobacter pyloris bacteria
    Male sex cell — Stock Photo
    Male sex cell
    Enterococcus bacteria colony — Stock Photo
    Enterococcus bacteria colony
    Sperm cell in a fallopian tube — Stock Photo
    Sperm cell in a fallopian tube
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Illustration of single human blood cell on black background. — Stock Photo
    Illustration of single human blood cell on black background.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    3d illustration of transparent and colourful protozoa. — Stock Photo
    3d illustration of transparent and colourful protozoa.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Visual rendering of Amoeba — Stock Photo
    Visual rendering of Amoeba
    Male sex cell — Stock Photo
    Male sex cell
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Rod-shaped Anthrax bacteria — Stock Photo
    Rod-shaped Anthrax bacteria
    Animal cell structure — Stock Photo
    Animal cell structure
    Schizosaccharomyces pombe yeast — Stock Photo
    Schizosaccharomyces pombe yeast
    Diatom eukaryotic algae — Stock Photo
    Diatom eukaryotic algae
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Cells trapped in fibrin protein mesh — Stock Photo
    Cells trapped in fibrin protein mesh
    Primula pollen grain — Stock Photo
    Primula pollen grain
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Single abstract bacterium on black background, computer illustration. — Stock Photo
    Single abstract bacterium on black background, computer illustration.
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. — Stock Photo
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans.
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Visual rendering of Amoeba — Stock Photo
    Visual rendering of Amoeba
    Anthrax bacteria structure — Stock Photo
    Anthrax bacteria structure
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Schizosaccharomyces pombe yeast — Stock Photo
    Schizosaccharomyces pombe yeast
    Father checking smartphone while comforting sick daughter — Stock Photo
    Father checking smartphone while comforting sick daughter
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain