En
  • En English
  • De Deutsch
  • Fr Français
  • Sp Español
  • Ru Русский
  • It Italiano
  • Pt Português
  • Ua Українська
34541394 results

    OrientationOrientation
    PeoplePeople
    CategoryCategory
    ColorColor
    EditorialEditorial
    Safe SearchSafe Search
    Clear
    Hide
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Illustration of purple chloride channels in cell membrane. — Stock Photo
    Illustration of purple chloride channels in cell membrane.
    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Microbiological culture growing in Petri dish. — Stock Photo
    Microbiological culture growing in Petri dish.
    CRISPR-Cas9 gene editing complex in DNA and cells, conceptual illustration. — Stock Photo
    CRISPR-Cas9 gene editing complex in DNA and cells, conceptual illustration.
    Neural network and connections — Stock Photo
    Neural network and connections
    3d illustration of Ebola virus causing viral haemorrhagic fever in bloodstream with red and white blood cells. — Stock Photo
    3d illustration of Ebola virus causing viral haemorrhagic fever in bloodstream with red and white blood cells.
    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
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria. — Stock Photo
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria.
    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
    Transitional epithelium in urinary bladder, digital illustration. — Stock Photo
    Transitional epithelium in urinary bladder, digital illustration.
    Illustration of motor protein cellular structure. — Stock Photo
    Illustration of motor protein cellular structure.
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital illustration.
    Closeup of needle of syringe filled with vaccine from virus injected in cell on blurred background — Stock Photo
    Closeup of needle of syringe filled with vaccine from virus injected in cell on blurred background
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow).
    Zika virus particles transmitted by mosquito bite, digital illustration. — Stock Photo
    Zika virus particles transmitted by mosquito bite, digital illustration.
    Medical nanorobot in blood flow, digital illustration. — Stock Photo
    Medical nanorobot in blood flow, digital illustration.
    Illustration of Neisseria meningitidis bacteria. N. meningitidis are gram-negative diplococci (spherical bacteria arranged in pairs), transmitted by the respiratory route — Stock Photo
    Illustration of Neisseria meningitidis bacteria. N. meningitidis are gram-negative diplococci (spherical bacteria arranged in pairs), transmitted by the respiratory route
    3d digital illustration of narrowed blood vessel. — Stock Photo
    3d digital illustration of narrowed blood vessel.
    Red blood cells on black background, digital illustration. — Stock Photo
    Red blood cells on black background, digital illustration.
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Coloured scanning electron micrograph of cancer cells migrating down pores. — Stock Photo
    Coloured scanning electron micrograph of cancer cells migrating down pores.
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Abstract group of particles of viruses, computer illustration. — Stock Photo
    Abstract group of particles of viruses, computer illustration.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Activated platelets in blood flow, illustration. — Stock Photo
    Activated platelets in blood flow, illustration.
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Atherosclerosis harming blood vessel — Stock Photo
    Atherosclerosis harming blood vessel
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors. — Stock Photo
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors.
    16-cell morula embryo — Stock Photo
    16-cell morula embryo
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration. — Stock Photo
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration.
    Illustration different types of polymeric nanoparticles used for drug delivery. From clockwise: nanosphere (top left), dendrimer (top right), polymer micelle (bottom right) and polymersome (bottom left). — Stock Photo
    Illustration different types of polymeric nanoparticles used for drug delivery. From clockwise: nanosphere (top left), dendrimer (top right), polymer micelle (bottom right) and polymersome (bottom left).
    Light micrograph of a section of stomach tissue showing a lesion (centre) caused by a gastric ulcer. — Stock Photo
    Light micrograph of a section of stomach tissue showing a lesion (centre) caused by a gastric ulcer.
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Measles virus particles, digital illustration. — Stock Photo
    Measles virus particles, digital illustration.
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane. — Stock Photo
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Adipocyte fat cells, digital illustration. — Stock Photo
    Adipocyte fat cells, digital illustration.
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Coloured scanning electron micrograph (SEM) of sensory inner hair cells from the organ of corti, in the cochlea of the inner ear. — Stock Photo
    Coloured scanning electron micrograph (SEM) of sensory inner hair cells from the organ of corti, in the cochlea of the inner ear.
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain. — Stock Photo
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain.
    Digital illustration of female reproductive system and Chlamydia trachomatis bacteria causing Chlamydial infection. — Stock Photo
    Digital illustration of female reproductive system and Chlamydia trachomatis bacteria causing Chlamydial infection.
    Digital illustration of trypanosome parasite in blood causing Chagas disease. — Stock Photo
    Digital illustration of trypanosome parasite in blood causing Chagas disease.
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Parasitic amoeba engulfing red blood cells, illustration in imaging flow cytometry. — Stock Photo
    Parasitic amoeba engulfing red blood cells, illustration in imaging flow cytometry.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Covid-19, Coronavirus. Several covid-19 viruses infecting the human organism. Concept image of the virus inside human cells. — Stock Photo
    Covid-19, Coronavirus. Several covid-19 viruses infecting the human organism. Concept image of the virus inside human cells.
    Human cell, computer illustration — Stock Photo
    Human cell, computer illustration
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Plasmodium falciparum protozoan inside red blood cells, computer illustration — Stock Photo
    Plasmodium falciparum protozoan inside red blood cells, computer illustration
    Digital illustration of structure of bilayer with phospholipids plasma membrane enclosing cells. — Stock Photo
    Digital illustration of structure of bilayer with phospholipids plasma membrane enclosing cells.
    Erythrocytes red blood cells in human blood vessel, digital illustration. — Stock Photo
    Erythrocytes red blood cells in human blood vessel, digital illustration.