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    Portrait playful girl student holding molecular structure on head at microscope in laboratory classroom — Stock Photo
    Portrait playful girl student holding molecular structure on head at microscope in laboratory classroom
    House dust mites — Stock Photo
    House dust mites
    Male sex cell — Stock Photo
    Male sex cell
    Digital artwork of illuminated red human cancer cell. — Stock Photo
    Digital artwork of illuminated red human cancer cell.
    College students using microscope conducting scientific experiment in laboratory — Stock Photo
    College students using microscope conducting scientific experiment in laboratory
    Texture on mushroom coral — Stock Photo
    Texture on mushroom coral
    Ginger boy using light microscope on green grass. — Stock Photo
    Ginger boy using light microscope on green grass.
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Male teacher and smiling girl student conducting scientific experiment at microscope in laboratory classroom — Stock Photo
    Male teacher and smiling girl student conducting scientific experiment at microscope in laboratory classroom
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Cropped view of engineer using stereo microscope for inspecting printed circuit board. — Stock Photo
    Cropped view of engineer using stereo microscope for inspecting printed circuit board.
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Close up of smiling couple using opera glasses in theater audience — Stock Photo
    Close up of smiling couple using opera glasses in theater audience
    Smiling male science teacher helping girl students conducting scientific experiment at microscope in laboratory — Stock Photo
    Smiling male science teacher helping girl students conducting scientific experiment at microscope in laboratory
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    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
    Clostridium phytofermentans bacteria — Stock Photo
    Clostridium phytofermentans bacteria
    Closeup yellow flying wasp folding legs and looking at camera with big green eyes — Stock Photo
    Closeup yellow flying wasp folding legs and looking at camera with big green eyes
    Illustration of 8 cell stage egg on blue background. — Stock Photo
    Illustration of 8 cell stage egg on blue background.
    Cup coral polyps under ledge — Stock Photo
    Cup coral polyps under ledge
    Closeup of magnified grey head of flying insect with round convex green eyes — Stock Photo
    Closeup of magnified grey head of flying insect with round convex green eyes
    Microscopic cross section view of HIV virus — Stock Photo
    Microscopic cross section view of HIV virus
    Phyllidia coelestis nudibranch — Stock Photo
    Phyllidia coelestis nudibranch
    Adenocarcinoma of the endometrium — Stock Photo
    Adenocarcinoma of the endometrium
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Woman with mole on shoulder being examined through dermatoscope. — Stock Photo
    Woman with mole on shoulder being examined through dermatoscope.
    Dead bluebottle fly — Stock Photo
    Dead bluebottle fly
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Closeup of magnified part of black and brown ant with glossy belly and legs — Stock Photo
    Closeup of magnified part of black and brown ant with glossy belly and legs
    Tozeuma shrimp on coral branch — Stock Photo
    Tozeuma shrimp on coral branch
    Secondary liver cancer — Stock Photo
    Secondary liver cancer
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Medical illustration detailing thoracic outlet syndrome — Stock Photo
    Medical illustration detailing thoracic outlet syndrome
    Italy, Cicada on tree — Stock Photo
    Italy, Cicada on tree
    Ascaris Roundworm ovaries — Stock Photo
    Ascaris Roundworm ovaries
    Tree coral on Fijian reef — Stock Photo
    Tree coral on Fijian reef
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Focused boy students using digital tablet at microscope in laboratory classroom — Stock Photo
    Focused boy students using digital tablet at microscope in laboratory classroom
    Fossilised fragment of a coccolithotrope skeleton — Stock Photo
    Fossilised fragment of a coccolithotrope skeleton
    Cup coral polyps under ledge — Stock Photo
    Cup coral polyps under ledge
    Conceptual illustration of piece of cake and magnification of bacteria of food-borne infection on white background. — Stock Photo
    Conceptual illustration of piece of cake and magnification of bacteria of food-borne infection on white background.
    Educational device for optical experiments — Stock Photo
    Educational device for optical experiments
    Male sex cell — Stock Photo
    Male sex cell
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake — Stock Photo
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Clostridium phytofermentans bacteria — Stock Photo
    Clostridium phytofermentans bacteria
    Digital artwork of illuminated red human cancer cell. — Stock Photo
    Digital artwork of illuminated red human 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.
    Human blood cells — Stock Photo
    Human blood cells
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Escherichia coli bacteria on gecko tongue — Stock Photo
    Escherichia coli bacteria on gecko tongue
    Woman looking through spotting scope, Wyoming, USA — Stock Photo
    Woman looking through spotting scope, Wyoming, USA
    Illustration of transparent cancer cell on blue background. — Stock Photo
    Illustration of transparent cancer cell on blue background.
    Whip coral goby fish — Stock Photo
    Whip coral goby fish
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Male doctor examining young woman using magnification lamp. — Stock Photo
    Male doctor examining young woman using magnification lamp.
    Mushroom coral closeup shot — Stock Photo
    Mushroom coral closeup shot
    Illustration of dividing human egg cell. — Stock Photo
    Illustration of dividing human egg cell.