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    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Scanning electron micrograph of bacteria cultured from sample of human faeces. — Stock Photo
    Scanning electron micrograph of bacteria cultured from sample of human faeces.
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli.
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli.
    Nurses with clipboard examining magnified microscope slide on computer monitor — Stock Photo
    Nurses with clipboard examining magnified microscope slide on computer monitor
    Female nurse with clipboard looking at magnified microscope slide on computer monitor — Stock Photo
    Female nurse with clipboard looking at magnified microscope slide on computer monitor
    Digital illustration of Legionella pneumophila bacteria causing Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria causing Legionnaires disease.
    Digital illustration of Legionella pneumophila bacteria causing Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria causing Legionnaires disease.
    Digital illustration of Legionella pneumophila bacteria causing Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria causing Legionnaires disease.
    Digital illustration of Escherichia coli bacteria. — Stock Photo
    Digital illustration of Escherichia coli bacteria.
    Digital illustration of Escherichia coli bacteria. — Stock Photo
    Digital illustration of Escherichia coli bacteria.
    Digital illustration of Escherichia coli bacteria. — Stock Photo
    Digital illustration of Escherichia coli bacteria.
    Woman with mole on shoulder being examined through dermatoscope. — Stock Photo
    Woman with mole on shoulder being examined through dermatoscope.
    Woman with mole on shoulder being examined through dermatoscope. — Stock Photo
    Woman with mole on shoulder being examined through dermatoscope.
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan.
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre. — Stock Photo
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre.
    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.
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan.
    Acinar pancreatic cell — Stock Photo
    Acinar pancreatic cell
    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.
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Salmonella typhimurium bacterium — Stock Photo
    Salmonella typhimurium bacterium
    Skeletal muscle fibres — Stock Photo
    Skeletal muscle fibres
    Mycobacterium smegmatis bacteria — Stock Photo
    Mycobacterium smegmatis bacteria
    Clostridium phytofermentans bacteria — Stock Photo
    Clostridium phytofermentans bacteria
    Visual representation of Chromosome structure — Stock Photo
    Visual representation of Chromosome structure
    Visual representation of Chromosome structure — Stock Photo
    Visual representation of Chromosome structure
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Red blood cells — Stock Photo
    Red blood cells
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Clostridium phytofermentans bacteria — Stock Photo
    Clostridium phytofermentans bacteria
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Chromosomes with four-arm structure — Stock Photo
    Chromosomes with four-arm structure