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    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    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.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Normal human sperm cells — Stock Photo
    Normal 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.
    Magnified digital illustration of 2 cell stage embryo. — Stock Photo
    Magnified digital illustration of 2 cell stage embryo.
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Illustration of 4 cell stage egg on blue background. — Stock Photo
    Illustration of 4 cell stage egg on blue background.
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Sperm cells in seminiferous tubule — Stock Photo
    Sperm cells in seminiferous tubule
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Magnified digital illustration of implanted blastocyst cell. — Stock Photo
    Magnified digital illustration of implanted blastocyst cell.
    Illustration of human egg cell and sperm on blue background. — Stock Photo
    Illustration of human egg cell and sperm on blue background.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    3d illustration of red transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of red transparent sperm cells swimming towards egg cell.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    In vitro fertilization process, digital artwork. — Stock Photo
    In vitro fertilization process, digital artwork.
    In vitro fertilisation, computer illustration — Stock Photo
    In vitro fertilisation, computer illustration
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Human sperm cells — Stock Photo
    Human sperm cells
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    3d illustration of transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of transparent sperm cells swimming towards egg cell.
    3d illustration of transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of transparent sperm cells swimming towards egg cell.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Illustration of 2 cell stage egg on blue background. — Stock Photo
    Illustration of 2 cell stage egg on blue background.
    3d illustration of sperm cells frozen into ice cubes. — Stock Photo
    3d illustration of sperm cells frozen into ice cubes.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Passion flower pollen — Stock Photo
    Passion flower 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.
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    3d illustration of red transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of red transparent sperm cells swimming towards egg cell.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Sperm cell fertilising an egg cell — Stock Photo
    Sperm cell fertilising an egg cell
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Male sex cell — Stock Photo
    Male sex cell
    Transparent sperm cells moving towards round red colored egg cell, illustration. — Stock Photo
    Transparent sperm cells moving towards round red colored egg cell, illustration.
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Egg cells on white background, digital illustration. — Stock Photo
    Egg cells on white background, digital illustration.
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    3d illustration of egg cell frozen into ice cube. — Stock Photo
    3d illustration of egg cell frozen into ice cube.
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Sperm cell in a fallopian tube — Stock Photo
    Sperm cell in a fallopian tube