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    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Amoeba shell. Coloured scanning electron micrograph (SEM) of a shell from a Euglypha sp. amoeba. — Stock Photo
    Amoeba shell. Coloured scanning electron micrograph (SEM) of a shell from a Euglypha sp. amoeba.
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Visual rendering of Amoeba — Stock Photo
    Visual rendering of Amoeba
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells.
    Visual rendering of Amoeba — Stock Photo
    Visual rendering of Amoeba
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    3d illustration of a transparent and colourful protozoan. — Stock Photo
    3d illustration of a transparent and colourful protozoan.
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Male sex cell — Stock Photo
    Male sex cell
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Single abstract bacterium on black background, computer illustration. — Stock Photo
    Single abstract bacterium on black background, computer illustration.
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    Illustration of single human blood cell on white background. — Stock Photo
    Illustration of single human blood cell on white background.
    Colored scanning electron micrograph of white blood cells and single platelet. — Stock Photo
    Colored scanning electron micrograph of white blood cells and single platelet.
    Conceptual image of polyomavirus cell — Stock Photo
    Conceptual image of polyomavirus cell
    Enterococcus bacteria colony — Stock Photo
    Enterococcus bacteria colony
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Woman talking on cell phone with automobile hood raised at roadside — Stock Photo
    Woman talking on cell phone with automobile hood raised at roadside
    3d illustration of red colored protozoan microorganism. — Stock Photo
    3d illustration of red colored protozoan microorganism.
    Paramecium sp. ciliate protozoa — Stock Photo
    Paramecium sp. ciliate protozoa
    Illustration of single human blood cell on white background. — Stock Photo
    Illustration of single human blood cell on white background.
    Male sex cell — Stock Photo
    Male sex cell
    Paramecium sp. ciliate protozoa — Stock Photo
    Paramecium sp. ciliate protozoa
    Abutilon pollen grain — Stock Photo
    Abutilon pollen grain
    Soap bubbles and acrylic paint in oil — Stock Photo
    Soap bubbles and acrylic paint in oil
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    3d rendering of a virus — Stock Photo
    3d rendering of a virus
    Cells trapped in fibrin protein mesh — Stock Photo
    Cells trapped in fibrin protein mesh
    Illustration of single human blood cell on black background. — Stock Photo
    Illustration of single human blood cell on black background.
    Woman talking on cell phone at roadside behind warning triangle — Stock Photo
    Woman talking on cell phone at roadside behind warning triangle
    Microscopic view of pancreatic cancer cell — Stock Photo
    Microscopic view of pancreatic cancer cell
    Entamoeba gingivalis parasitic pathogen single-celled protozoan, amoeba in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoan, amoeba in oral cavity, digital illustration.
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Paramecium ciliate protozoan — Stock Photo
    Paramecium ciliate protozoan
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    Visual rendering of Amoeba — Stock Photo
    Visual rendering of Amoeba
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration