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    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration. — Stock Photo
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration.
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Sperm spermatozoa swimming towards egg cell, colored digital illustration. — Stock Photo
    Sperm spermatozoa swimming towards egg cell, colored digital illustration.
    Colored scanning electron micrograph of pollen grains from Nymphaeaceae water lily flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from Nymphaeaceae water lily flower.
    Coloured scanning electron micrograph (SEM) of immature dog sperm. — Stock Photo
    Coloured scanning electron micrograph (SEM) of immature dog sperm.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    3d illustration of transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of transparent sperm cells swimming towards egg cell.
    Alstroemeria anther and pollen — Stock Photo
    Alstroemeria anther and pollen
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Sperm spermatozoa swimming towards egg cell, colored digital illustration. — Stock Photo
    Sperm spermatozoa swimming towards egg cell, colored digital illustration.
    Primary ovarian follicle — Stock Photo
    Primary ovarian follicle
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Magnified digital illustration of implanted blastocyst cell. — Stock Photo
    Magnified digital illustration of implanted blastocyst cell.
    Prostate tissue showing Iadenocarcinoma — Stock Photo
    Prostate tissue showing Iadenocarcinoma
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Illustration of sperm around human egg cell. — Stock Photo
    Illustration of sperm around human egg cell.
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Illustration of human egg cell dividing on blue background. — Stock Photo
    Illustration of human egg cell dividing on blue background.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Human sperm cells — Stock Photo
    Human sperm cells
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    Male sex cell — Stock Photo
    Male sex cell
    Human sperm cells — Stock Photo
    Human sperm cells
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Illustration of pink human egg cell on black background. — Stock Photo
    Illustration of pink human egg cell on black background.
    Sunflower pollen structure — Stock Photo
    Sunflower pollen structure
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Egg cell with nucleus, digital illustration. — Stock Photo
    Egg cell with nucleus, digital illustration.
    Magnified digital illustration of fertilisation of egg cell. — Stock Photo
    Magnified digital illustration of fertilisation of egg cell.
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    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.
    Human sperm cells — Stock Photo
    Human sperm cells
    Transparent sperm cells moving towards round red colored egg cell, illustration. — Stock Photo
    Transparent sperm cells moving towards round red colored egg cell, illustration.
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Illustration of 8 cell stage egg on blue background. — Stock Photo
    Illustration of 8 cell stage egg on blue background.