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432 results

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    Skin cancer cell — Stock Photo
    Skin cancer cell
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Cardiac muscle from a healthy heart — Stock Photo
    Cardiac muscle from a healthy heart
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Skeletal muscle fibres — Stock Photo
    Skeletal muscle fibres
    Male sex cell — Stock Photo
    Male sex cell
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is brown. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (blue) contain enzymes for digesting foreign particles — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is brown. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (blue) contain enzymes for digesting foreign particles
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Colored scanning electron micrograph of diatoms photosynthetic single-celled algae. — Stock Photo
    Colored scanning electron micrograph of diatoms photosynthetic single-celled algae.
    Crystalline lens of the eye — Stock Photo
    Crystalline lens of the eye
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Lining of the small intestine — Stock Photo
    Lining of the small intestine
    Colored scanning electron micrograph of metal nanoparticles formed by laser ablation. — Stock Photo
    Colored scanning electron micrograph of metal nanoparticles formed by laser ablation.
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Schizosaccharomyces pombe yeast — Stock Photo
    Schizosaccharomyces pombe yeast
    Acinar pancreatic cell — Stock Photo
    Acinar pancreatic cell
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    Bacteria from a coin. Coloured scanning electron micrograph (SEM) of bacteria cultured from a english one pound coin — Stock Photo
    Bacteria from a coin. Coloured scanning electron micrograph (SEM) of bacteria cultured from a english one pound coin
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid — Stock Photo
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid
    Asparagus beetle head — Stock Photo
    Asparagus beetle head
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Collagen bundles from the delicate connective tissue — Stock Photo
    Collagen bundles from the delicate connective tissue
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Lymphoma cancer cell. Coloured scanning electron micrograph (SEM) of a lymphoma cell showing early apoptotic changes. A lymphoma is a cell of the immune system that has become cancerous. The cell becomes immortal and can grow indefinitely — Stock Photo
    Lymphoma cancer cell. Coloured scanning electron micrograph (SEM) of a lymphoma cell showing early apoptotic changes. A lymphoma is a cell of the immune system that has become cancerous. The cell becomes immortal and can grow indefinitely
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Quartz crystals structure — Stock Photo
    Quartz crystals structure
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Oligodendrocyte cell structure — Stock Photo
    Oligodendrocyte cell structure
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans — Stock Photo
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Collagen bundles from the delicate connective tissue — Stock Photo
    Collagen bundles from the delicate connective tissue
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube
    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 of mains cable damaged by mouse teeth. — Stock Photo
    Colored scanning electron micrograph of mains cable damaged by mouse teeth.
    Osteoporotic bone abnormality — Stock Photo
    Osteoporotic bone abnormality
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Male sex cell — Stock Photo
    Male sex cell
    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.
    Mobile phone speaker, colored scanning electron micrograph. — Stock Photo
    Mobile phone speaker, colored scanning electron micrograph.
    Dog tapeworm head — Stock Photo
    Dog tapeworm head
    Red blood cells — Stock Photo
    Red blood cells
    Blood clot structure — Stock Photo
    Blood clot structure
    Colored scanning electron micrograph of osteosarcoma bone cancer cell. — Stock Photo
    Colored scanning electron micrograph of osteosarcoma bone cancer cell.
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules