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237 results

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    Marine pennate diatom frustule — Stock Photo
    Marine pennate diatom frustule
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Parasitic trematode larva — Stock Photo
    Parasitic trematode larva
    Diatom eukaryotic algae — Stock Photo
    Diatom eukaryotic algae
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Endictya oceanica diatom — Stock Photo
    Endictya oceanica diatom
    Silica wall of a diatom — Stock Photo
    Silica wall of a diatom
    Villi of the intestine — Stock Photo
    Villi of the intestine
    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.
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Woodland skipper butterfly — Stock Photo
    Woodland skipper butterfly
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Aulacodiscus oregonus diatom — Stock Photo
    Aulacodiscus oregonus diatom
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    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.
    Scanning electron micrograph (SEM) of a PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph (SEM) of a PC12 neurone in culture.
    Coiled proboscis of a moth — Stock Photo
    Coiled proboscis of a moth
    Scientist checking nanofibre structure under light microscope. — Stock Photo
    Scientist checking nanofibre structure under light microscope.
    Photosynthetic Navicula sp. diatom — Stock Photo
    Photosynthetic Navicula sp. diatom
    Dead bluebottle fly — Stock Photo
    Dead bluebottle fly
    Nanoscale spikes formed on gold surface — Stock Photo
    Nanoscale spikes formed on gold surface
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female — Stock Photo
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Micrograph of house fly — Stock Photo
    Micrograph of house fly
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Simple columnar epithelium, digital illustration. — Stock Photo
    Simple columnar epithelium, digital illustration.
    Mosquito head anatomy — Stock Photo
    Mosquito head anatomy
    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.
    Mosquito head anatomy — Stock Photo
    Mosquito head anatomy
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    White blood cells — Stock Photo
    White blood cells
    Male sex cell — Stock Photo
    Male sex cell
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Morphology of Activated platelets — Stock Photo
    Morphology of Activated platelets
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Centric fossil diatom frustule — Stock Photo
    Centric fossil diatom frustule
    Dental floss with cheek cells — Stock Photo
    Dental floss with cheek cells
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Simple squamous epithelium, digital illustration. — Stock Photo
    Simple squamous epithelium, digital illustration.
    Human blood cells — Stock Photo
    Human blood cells
    Electron micrograph of Bacteria and yeast — Stock Photo
    Electron micrograph of Bacteria and yeast
    Male sex cell — Stock Photo
    Male sex cell
    Wasp eye numerous lenses — Stock Photo
    Wasp eye numerous lenses
    Osteosarcoma cancer cell — Stock Photo
    Osteosarcoma cancer cell
    Liradiscus sp. planktonic unicellular algae — Stock Photo
    Liradiscus sp. planktonic unicellular algae
    Light micrograph of goblet cells in colon. — Stock Photo
    Light micrograph of goblet cells in colon.
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Escherichia coli on the surface of human skin — Stock Photo
    Escherichia coli on the surface of human skin
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Components of house dust — Stock Photo
    Components of house dust