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    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom
    Adenocarcinoma of the thyroid gland — Stock Photo
    Adenocarcinoma of the thyroid gland
    Illustration of illuminated cancer cells on black background. — Stock Photo
    Illustration of illuminated cancer cells on black background.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Colonial tunicate closeup shot — Stock Photo
    Colonial tunicate closeup shot
    Illustration of dividing human egg cell. — Stock Photo
    Illustration of dividing human egg cell.
    Encrusting sponge closeup shot — Stock Photo
    Encrusting sponge closeup shot
    Digital artwork showing inclusion composed of group of chlamydia reticulate bodies of Chlamydia trachomatis bacteria. — Stock Photo
    Digital artwork showing inclusion composed of group of chlamydia reticulate bodies of Chlamydia trachomatis bacteria.
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM). — Stock Photo
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM).
    Medical illustration of blastocyst beginning implanting in the wall of the uterus — Stock Photo
    Medical illustration of blastocyst beginning implanting in the wall of the uterus
    Woman looking through spotting scope, Wyoming, USA — Stock Photo
    Woman looking through spotting scope, Wyoming, USA
    Activated platelet from peripheral blood — Stock Photo
    Activated platelet from peripheral blood
    Blue cells on black background, digital illustration. — Stock Photo
    Blue cells on black background, digital illustration.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Enterococcus coccoid bacteria, colored scanning electron micrograph. — Stock Photo
    Enterococcus coccoid bacteria, colored scanning electron micrograph.
    Closeup side view yellow flying wasp folding leg — Stock Photo
    Closeup side view yellow flying wasp folding leg
    Gymnodoris ceylonica nudibranch in Beqa Lagoon — Stock Photo
    Gymnodoris ceylonica nudibranch in Beqa Lagoon
    Red blood cells, digital illustration. — Stock Photo
    Red blood cells, digital illustration.
    Ruptured venule running through fatty tissue — Stock Photo
    Ruptured venule running through fatty tissue
    Veterinarian examining dog ears in veterinary surgery — Stock Photo
    Veterinarian examining dog ears in veterinary surgery
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria. — Stock Photo
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria.
    Hard coral polyps — Stock Photo
    Hard coral polyps
    Polyps of Galaxea coral colony — Stock Photo
    Polyps of Galaxea coral colony
    Side view of orange fluffy flying incest with brown antennae and ornamental large eyes — Stock Photo
    Side view of orange fluffy flying incest with brown antennae and ornamental large eyes
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Woman with mole on shoulder being examined through dermatoscope. — Stock Photo
    Woman with mole on shoulder being examined through dermatoscope.
    Fractured flexor tendon — Stock Photo
    Fractured flexor tendon
    Lychnocanoma radiolarian shell — Stock Photo
    Lychnocanoma radiolarian shell
    Italy, Cicada on tree — Stock Photo
    Italy, Cicada on tree
    Structure of trachea, light micrograph. — Stock Photo
    Structure of trachea, light micrograph.
    Woman hand holding magnifying glass looking at butterflies — Stock Photo
    Woman hand holding magnifying glass looking at butterflies
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria. — Stock Photo
    Coloured scanning electron micrograph of Staphylococcus aureus bacteria.
    Digital illustration of green cancer cells. — Stock Photo
    Digital illustration of green cancer cells.
    Female scientist using microscope in laboratory — Stock Photo
    Female scientist using microscope in laboratory
    Graphical representation of a single Norovirus virion on white background — Stock Photo
    Graphical representation of a single Norovirus virion on white background
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Shrimp on bubble coral — Stock Photo
    Shrimp on bubble coral
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Illustration of illuminated red human cancer cell. — Stock Photo
    Illustration of illuminated red human cancer cell.
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    Asparagus pollen grains — Stock Photo
    Asparagus pollen grains
    Boy holding guinea pig in vet examination — Stock Photo
    Boy holding guinea pig in vet examination
    Soft coral polyps — Stock Photo
    Soft coral polyps
    Ascaris Roundworm ovaries — Stock Photo
    Ascaris Roundworm ovaries
    Colorful Risbecia tryoni nudibranchs — Stock Photo
    Colorful Risbecia tryoni nudibranchs
    Male engineer using stereo microscope for inspecting manufactured component during quality control process. — Stock Photo
    Male engineer using stereo microscope for inspecting manufactured component during quality control process.
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom
    Students and teacher using binoculars in forest — Stock Photo
    Students and teacher using binoculars in forest
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    Red blood cells — Stock Photo
    Red blood cells
    Close up of smiling couple using opera glasses in theater audience — Stock Photo
    Close up of smiling couple using opera glasses in theater audience
    Electron micrograph of dental plaque — Stock Photo
    Electron micrograph of dental plaque
    Side view of orange fluffy flying incest with brown antennae and ornamental large eye — Stock Photo
    Side view of orange fluffy flying incest with brown antennae and ornamental large eye
    Digital artwork of green cancer cell on tissue surface. — Stock Photo
    Digital artwork of green cancer cell on tissue surface.
    Mushroom coral closeup shot — Stock Photo
    Mushroom coral closeup shot
    Conceptual illustration of chicken eggs in carton and magnification of bacteria of food-borne infection on white background. — Stock Photo
    Conceptual illustration of chicken eggs in carton and magnification of bacteria of food-borne infection on white background.
    Transparent cells on white background, digital illustration. — Stock Photo
    Transparent cells on white background, digital illustration.