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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).
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Deformed sperm cell — Stock Photo
    Deformed sperm cell
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Aconite anther and pollen — Stock Photo
    Aconite anther and pollen
    Sperm spermatozoa swimming towards egg cell, colored digital illustration. — Stock Photo
    Sperm spermatozoa swimming towards egg cell, colored digital illustration.
    Magnified digital illustration of 16 cell stage embryo. — Stock Photo
    Magnified digital illustration of 16 cell stage embryo.
    Sperm cells in seminiferous tubule — Stock Photo
    Sperm cells in seminiferous tubule
    3d illustration of in vitro fertilization of egg cell. — Stock Photo
    3d illustration of in vitro fertilization of egg cell.
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Female reproductive system — Stock Photo
    Female reproductive system
    Magnified digital illustration of 8 cell stage embryo. — Stock Photo
    Magnified digital illustration of 8 cell stage embryo.
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    Male sex cell — Stock Photo
    Male sex cell
    3d illustration of sperm cells approaching egg cell on colorful blue background. — Stock Photo
    3d illustration of sperm cells approaching egg cell on colorful blue background.
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Breast tissue showing adenocarcinoma — Stock Photo
    Breast tissue showing adenocarcinoma
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    In vitro fertilization process, digital artwork. — Stock Photo
    In vitro fertilization process, digital artwork.
    Primula pollen grain — Stock Photo
    Primula pollen grain
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    3d illustration of ovum egg cell implanting in uterus. — Stock Photo
    3d illustration of ovum egg cell implanting in uterus.
    Sperm cell fertilising an egg cell — Stock Photo
    Sperm cell fertilising an egg cell
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Illustration of pink human egg cell on black background. — Stock Photo
    Illustration of pink human egg cell on black background.
    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.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    3d illustration of red transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of red transparent sperm cells swimming towards egg cell.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    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.
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    Daffodil pollen structure and shape — Stock Photo
    Daffodil pollen structure and shape
    Human sperm cells — Stock Photo
    Human sperm cells
    Illustration of 8 cell stage egg on blue background. — Stock Photo
    Illustration of 8 cell stage egg on blue background.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    In vitro fertilisation process — Stock Photo
    In vitro fertilisation process
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Illustration of 2 cell stage egg on black background. — Stock Photo
    Illustration of 2 cell stage egg on black background.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Male sex cell — Stock Photo
    Male sex cell
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    Abutilon pollen grain — Stock Photo
    Abutilon pollen grain
    3d illustration of egg cell frozen into ice cube. — Stock Photo
    3d illustration of egg cell frozen into ice cube.
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Illustration of 4 cell stage egg on blue background. — Stock Photo
    Illustration of 4 cell stage egg on blue background.
    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.