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237 results

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    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    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
    Male human flea — Stock Photo
    Male human flea
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    Human head louse — Stock Photo
    Human head louse
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    House dust mites — Stock Photo
    House dust mites
    Red blood cells — Stock Photo
    Red blood cells
    Osteosarcoma cancer cell — Stock Photo
    Osteosarcoma cancer cell
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Mosquito head anatomy — Stock Photo
    Mosquito head anatomy
    Stratified cuboidal epithelium, digital illustration. — Stock Photo
    Stratified cuboidal epithelium, digital illustration.
    Stomach infected with parasitic nematode worms — Stock Photo
    Stomach infected with parasitic nematode worms
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    Light microscope objective lenses in laboratory. — Stock Photo
    Light microscope objective lenses in laboratory.
    Male sex cell — Stock Photo
    Male sex cell
    House dust mites — Stock Photo
    House dust mites
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Human blood cells — Stock Photo
    Human blood cells
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Micrograph of house fly — Stock Photo
    Micrograph of house fly
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    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.
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    White blood cells — Stock Photo
    White blood cells
    House dust mites — Stock Photo
    House dust mites
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Morphology of Activated platelets — Stock Photo
    Morphology of Activated platelets
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Human blood cells — Stock Photo
    Human blood cells
    Freshwater diatom Licmorpha sp. — Stock Photo
    Freshwater diatom Licmorpha sp.
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    Coiled proboscis of a moth — Stock Photo
    Coiled proboscis of a moth
    Dental floss with cheek cells — Stock Photo
    Dental floss with cheek cells
    Simple columnar epithelium, digital illustration. — Stock Photo
    Simple columnar epithelium, digital illustration.
    Simple squamous epithelium, digital illustration. — Stock Photo
    Simple squamous epithelium, digital illustration.
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Limescale, coloured scanning electron micrograph (SEM). — Stock Photo
    Limescale, coloured scanning electron micrograph (SEM).
    Woodland skipper butterfly compound eye — Stock Photo
    Woodland skipper butterfly compound eye
    Activated T lymphocytes and red blood cells on scanning electron micrograph. — Stock Photo
    Activated T lymphocytes and red blood cells on scanning electron micrograph.
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    White blood cells — Stock Photo
    White blood cells
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Undifferentiated pleomorphic sarcoma of bone — Stock Photo
    Undifferentiated pleomorphic sarcoma of bone
    Fractured flexor tendon — Stock Photo
    Fractured flexor tendon
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Activated human macrophage — Stock Photo
    Activated human macrophage
    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.
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Intestinal villi projections — Stock Photo
    Intestinal villi projections