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    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Female reproductive system — Stock Photo
    Female reproductive system
    Sperm cell fertilising an egg cell — Stock Photo
    Sperm cell fertilising an egg cell
    Human embryo with four cells — Stock Photo
    Human embryo with four cells
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Illustration of pink human egg cell on black background. — Stock Photo
    Illustration of pink human egg cell on black background.
    3d illustration of red transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of red transparent sperm cells swimming towards egg cell.
    Transparent sperm cells moving towards round blue coloured egg cell. — Stock Photo
    Transparent sperm cells moving towards round blue coloured egg cell.
    Human sperm cells — Stock Photo
    Human sperm cells
    Healthy human sperm cells — Stock Photo
    Healthy 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.
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    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.
    Immature dog sperm — Stock Photo
    Immature dog sperm
    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.
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Magnified digital illustration of implanted blastocyst cell. — Stock Photo
    Magnified digital illustration of implanted blastocyst cell.
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Male sex cell — Stock Photo
    Male sex cell
    Flowering currant pollen — Stock Photo
    Flowering currant pollen
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Illustration of sperm fertilizing human egg cell. — Stock Photo
    Illustration of sperm fertilizing human egg cell.
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    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 yellow human egg cell on blue background. — Stock Photo
    Illustration of yellow human egg cell on blue background.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Daffodil pollen structure and shape — Stock Photo
    Daffodil pollen structure and shape
    Illustration of dividing human egg cell. — Stock Photo
    Illustration of dividing human egg cell.
    Magnified digital illustration of 8 cell stage embryo. — Stock Photo
    Magnified digital illustration of 8 cell stage embryo.
    Egg cell with nucleus, digital illustration. — Stock Photo
    Egg cell with nucleus, digital illustration.
    Complex mucosal folding of seminal vesicle — Stock Photo
    Complex mucosal folding of seminal vesicle
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Female reproductive system — Stock Photo
    Female reproductive system
    Aconite anther and pollen — Stock Photo
    Aconite anther and pollen
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Alstroemeria anther and pollen — Stock Photo
    Alstroemeria anther and pollen
    3d illustration of transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of transparent sperm cells swimming towards egg cell.
    Prostate tissue showing Iadenocarcinoma — Stock Photo
    Prostate tissue showing Iadenocarcinoma
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Primary ovarian follicle — Stock Photo
    Primary ovarian follicle
    Illustration of human egg cell dividing on blue background. — Stock Photo
    Illustration of human egg cell dividing on blue background.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Climbing lily pollen — Stock Photo
    Climbing lily pollen