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    Coloured scanning electron micrograph (SEM) of a sectioned artery containing red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a sectioned artery containing red blood cells (erythrocytes, red).
    External mineralised structures of coccolithophores — Stock Photo
    External mineralised structures of coccolithophores
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM). — Stock Photo
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM).
    Red blood cells — Stock Photo
    Red blood cells
    Photosynthetic Navicula sp. diatom — Stock Photo
    Photosynthetic Navicula sp. diatom
    Colorectal cancer cell dividing — Stock Photo
    Colorectal cancer cell dividing
    Colored scanning electron micrograph of osteosarcoma bone cancer cell. — Stock Photo
    Colored scanning electron micrograph of osteosarcoma bone cancer cell.
    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    Coloured scanning electron micrograph (SEM) of Asbestos fiberschrysotile type. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Asbestos fiberschrysotile type.
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets
    White blood cells — Stock Photo
    White blood cells
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Coloured scanning electron micrograph (SEM) of a section through a foetal olfactory (smelling) sense organ known as the vomeronasal organ (VNO), or Jacobson organ. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a foetal olfactory (smelling) sense organ known as the vomeronasal organ (VNO), or Jacobson organ.
    Coloured scanning electron micrograph (SEM) of squamous epithelial cells on the skin surface. — Stock Photo
    Coloured scanning electron micrograph (SEM) of squamous epithelial cells on the skin surface.
    Cardiac muscle from a healthy heart — Stock Photo
    Cardiac muscle from a healthy heart
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Male sex cell — Stock Photo
    Male sex cell
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    Components of house dust — Stock Photo
    Components of house dust
    Micrograph of tendon fibres — Stock Photo
    Micrograph of tendon fibres
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Tendon, coloured scanning electron micrograph showing bundles of collagen fibres. — Stock Photo
    Tendon, coloured scanning electron micrograph showing bundles of collagen fibres.
    Colored scanning electron micrograph of shelled amoebae, single-celled protozoan organisms. — Stock Photo
    Colored scanning electron micrograph of shelled amoebae, single-celled protozoan organisms.
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria. — Stock Photo
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria.
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue. — Stock Photo
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue.
    Human blood cells — Stock Photo
    Human blood cells
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Ruptured venule running through fatty tissue — Stock Photo
    Ruptured venule running through fatty tissue
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species — Stock Photo
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species
    Epithelial lining of Fallopian tube — Stock Photo
    Epithelial lining of Fallopian tube
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Crystalline lens of the eye — Stock Photo
    Crystalline lens of the eye
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli, commonly known as E coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli, commonly known as E coli.
    Salt water pennate diatom frustule — Stock Photo
    Salt water pennate diatom frustule
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    Myelinated nerve fibres — Stock Photo
    Myelinated nerve fibres
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM). — Stock Photo
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM).
    Escherichia coli on the surface of human skin — Stock Photo
    Escherichia coli on the surface of human skin
    Crystalline lens of the eye — Stock Photo
    Crystalline lens of the eye
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph. — Stock Photo
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph.
    Coloured scanning electron micrograph of Phasmarhabditis hermaphrodita microscopic nematode parasite of Rhabditidae. — Stock Photo
    Coloured scanning electron micrograph of Phasmarhabditis hermaphrodita microscopic nematode parasite of Rhabditidae.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Colored scanning electron micrograph of stem cell-derived motor neuron cell. — Stock Photo
    Colored scanning electron micrograph of stem cell-derived motor neuron cell.
    House dust mites — Stock Photo
    House dust mites
    Human tooth fractured enamel, coloured scanning electron micrograph (SEM). — Stock Photo
    Human tooth fractured enamel, coloured scanning electron micrograph (SEM).
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    Scanning electron micrograph of dermestid beetle head. — Stock Photo
    Scanning electron micrograph of dermestid beetle head.
    Illustration of abstract cancer cell with tentacles on plain background. — Stock Photo
    Illustration of abstract cancer cell with tentacles on plain background.
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph. — Stock Photo
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph.
    Breast cancer cells growing in culture — Stock Photo
    Breast cancer cells growing in culture
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.