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    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Colored scanning electron micrograph of starch grains in seed of legume. — Stock Photo
    Colored scanning electron micrograph of starch grains in seed of legume.
    Colored scanning electron micrograph of osteosarcoma bone cancer cell. — Stock Photo
    Colored scanning electron micrograph of osteosarcoma bone cancer cell.
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Nanostructures formed on a silicon surface — Stock Photo
    Nanostructures formed on a silicon surface
    Blood clot structure — Stock Photo
    Blood clot structure
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Primula pollen grain — Stock Photo
    Primula pollen grain
    Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them with blood — Stock Photo
    Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them with blood
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Colored scanning electron micrograph of Streptococcus mutans anaerobic bacteria in normal bacteria flora of mouth. — Stock Photo
    Colored scanning electron micrograph of Streptococcus mutans anaerobic bacteria in normal bacteria flora of mouth.
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph. — Stock Photo
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Wasp eye numerous lenses — Stock Photo
    Wasp eye numerous lenses
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Resting T lymphocytes. Coloured scanning electron micrograph (SEM) of resting T lymphocytes from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system — Stock Photo
    Resting T lymphocytes. Coloured scanning electron micrograph (SEM) of resting T lymphocytes from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles. — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles.
    Asparagus beetle head — Stock Photo
    Asparagus beetle head
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Microvilli of gallbladder surface — Stock Photo
    Microvilli of gallbladder surface
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Colored scanning electron micrograph showing urethral epithelium of urethra. — Stock Photo
    Colored scanning electron micrograph showing urethral epithelium of urethra.
    Abutilon pollen grain — Stock Photo
    Abutilon pollen grain
    Coiled proboscis of a moth — Stock Photo
    Coiled proboscis of a moth
    Neurone embedded in grey matter — Stock Photo
    Neurone embedded in grey matter
    Pit formed on metal or semiconductor surface — Stock Photo
    Pit formed on metal or semiconductor surface
    Cat flea head — Stock Photo
    Cat flea head
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans — Stock Photo
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Stick insect foot — Stock Photo
    Stick insect foot
    Cancellous Bone tissue — Stock Photo
    Cancellous Bone tissue
    Bird bone tissue — Stock Photo
    Bird bone tissue
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( blue) is an insulating fatty layer that surrounds the myelinated nerve fibres (pink) — Stock Photo
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( blue) is an insulating fatty layer that surrounds the myelinated nerve fibres (pink)
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Scanning electron micrograph of dermestid beetle head. — Stock Photo
    Scanning electron micrograph of dermestid beetle head.
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals) — Stock Photo
    Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals)
    Dog tapeworm head — Stock Photo
    Dog tapeworm head
    Used surgical swab — Stock Photo
    Used surgical swab
    Diatom eukaryotic algae — Stock Photo
    Diatom eukaryotic algae
    Coloured scanning electron micrograph of tardigrade water bear. — Stock Photo
    Coloured scanning electron micrograph of tardigrade water bear.
    Myelinated nerve fibres — Stock Photo
    Myelinated nerve fibres
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Red blood cells — Stock Photo
    Red blood cells
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Colored scanning electron micrograph of starch grains in seed of legume. — Stock Photo
    Colored scanning electron micrograph of starch grains in seed of legume.
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines — Stock Photo
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines