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237 results

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    Human eyelash mites — Stock Photo
    Human eyelash mites
    Human head louse — Stock Photo
    Human head louse
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Salt water pennate diatom frustule — Stock Photo
    Salt water pennate diatom frustule
    Liradiscus sp. planktonic unicellular algae — Stock Photo
    Liradiscus sp. planktonic unicellular algae
    Human blood cells — Stock Photo
    Human blood cells
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Stratified cuboidal epithelium, digital illustration. — Stock Photo
    Stratified cuboidal epithelium, digital illustration.
    Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue. — Stock Photo
    Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue.
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Giant Polytene chromosomes — Stock Photo
    Giant Polytene chromosomes
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Simple columnar epithelium, digital illustration. — Stock Photo
    Simple columnar epithelium, digital illustration.
    Activated T lymphocytes and red blood cells on scanning electron micrograph. — Stock Photo
    Activated T lymphocytes and red blood cells on scanning electron micrograph.
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Simple squamous epithelium, digital illustration. — Stock Photo
    Simple squamous epithelium, digital illustration.
    Nanoscale spikes formed on gold surface — Stock Photo
    Nanoscale spikes formed on gold surface
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Stomach infected with parasitic nematode worms — Stock Photo
    Stomach infected with parasitic nematode worms
    Parasitic trematode larva — Stock Photo
    Parasitic trematode larva
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Escherichia coli on the surface of human skin — Stock Photo
    Escherichia coli on the surface of human skin
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Nanostructures formed on a silicon surface — Stock Photo
    Nanostructures formed on a silicon surface
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Scanning electron micrograph (SEM) of a PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph (SEM) of a PC12 neurone in culture.
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria. — Stock Photo
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria.
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    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
    Undifferentiated pleomorphic sarcoma of bone — Stock Photo
    Undifferentiated pleomorphic sarcoma of bone
    Nanostructures formed on nickel surface — Stock Photo
    Nanostructures formed on nickel surface
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Clothes moth wing scales — Stock Photo
    Clothes moth wing scales
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    Activated platelets with canalicular system — Stock Photo
    Activated platelets with canalicular system
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Pit formed on metal or semiconductor surface — Stock Photo
    Pit formed on metal or semiconductor surface
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Male mosquito head — Stock Photo
    Male mosquito head
    Red blood cells — Stock Photo
    Red blood cells
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Light microscope objective lenses in laboratory. — Stock Photo
    Light microscope objective lenses in laboratory.
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Section through the nasal mucosa — Stock Photo
    Section through the nasal mucosa
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    Electron micrograph of Bacteria and yeast — Stock Photo
    Electron micrograph of Bacteria and yeast