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237 results

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    Woodland skipper butterfly — Stock Photo
    Woodland skipper butterfly
    Giant Polytene chromosomes — Stock Photo
    Giant Polytene chromosomes
    Scientist pointing at scanning electron micrographs of different nanofibre structures. — Stock Photo
    Scientist pointing at scanning electron micrographs of different nanofibre structures.
    Illustration of Lactobacillus colony — Stock Photo
    Illustration of Lactobacillus colony
    White blood cells — Stock Photo
    White blood cells
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Nanostructures formed on nickel surface — Stock Photo
    Nanostructures formed on nickel surface
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Aulacodiscus oregonus diatom — Stock Photo
    Aulacodiscus oregonus diatom
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Marine pennate diatom frustule — Stock Photo
    Marine pennate diatom frustule
    Fertilization of human egg — Stock Photo
    Fertilization of human egg
    Male mosquito head — Stock Photo
    Male mosquito head
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Female of the human body louse — Stock Photo
    Female of the human body louse
    Red blood cells — Stock Photo
    Red blood cells
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    Giant Polytene chromosomes — Stock Photo
    Giant Polytene chromosomes
    Arachnoidiscus sp. diatom algae — Stock Photo
    Arachnoidiscus sp. diatom algae
    Woodland skipper butterfly compound eye — Stock Photo
    Woodland skipper butterfly compound eye
    Simple columnar epithelium, digital illustration. — Stock Photo
    Simple columnar epithelium, digital illustration.
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Marine planktonic unicellular alga — Stock Photo
    Marine planktonic unicellular alga
    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
    Lung cancer cells — Stock Photo
    Lung cancer cells
    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
    House dust mites — Stock Photo
    House dust mites
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Sarcoptic mange mites eggs — Stock Photo
    Sarcoptic mange mites eggs
    Silica wall of a diatom — Stock Photo
    Silica wall of a diatom
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    Human blood cells — Stock Photo
    Human blood cells
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Liver fluke Clonorchis sinensis — Stock Photo
    Liver fluke Clonorchis sinensis
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    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 (SEM) of the shell of the foraminiferan Orbulina sp. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp.
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Stomach infected with parasitic nematode worms — Stock Photo
    Stomach infected with parasitic nematode worms
    Centric fossil diatom frustule — Stock Photo
    Centric fossil diatom frustule
    Light micrograph of goblet cells in colon. — Stock Photo
    Light micrograph of goblet cells in colon.
    Male mosquito head — Stock Photo
    Male mosquito head
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Human head louse — Stock Photo
    Human head louse
    Bluebottle fly head — Stock Photo
    Bluebottle fly head
    Freshwater diatom Licmorpha sp. — Stock Photo
    Freshwater diatom Licmorpha sp.
    Male sex cell — Stock Photo
    Male sex cell
    Morphology of Activated platelets — Stock Photo
    Morphology of Activated platelets
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Human eyelash mites — Stock Photo
    Human eyelash mites