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    Illustration of sperm around human egg cell. — Stock Photo
    Illustration of sperm around human egg cell.
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    3d illustration of egg cell frozen into ice cube. — Stock Photo
    3d illustration of egg cell frozen into ice cube.
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Human egg cell — Stock Photo
    Human egg cell
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    In vitro fertilization process, digital artwork. — Stock Photo
    In vitro fertilization process, digital artwork.
    Aconite anther and pollen — Stock Photo
    Aconite anther and pollen
    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.
    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.
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    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.
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    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.
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Sperm cells in seminiferous tubule — Stock Photo
    Sperm cells in seminiferous tubule
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Magnified digital illustration of fertilisation of egg cell. — Stock Photo
    Magnified digital illustration of fertilisation of egg cell.
    Illustration of 2 cell stage egg on black background. — Stock Photo
    Illustration of 2 cell stage egg on black background.
    Female reproductive system — Stock Photo
    Female reproductive system
    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.
    Alstroemeria anther and pollen — Stock Photo
    Alstroemeria anther and pollen
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Human sperm cells — Stock Photo
    Human sperm cells
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    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.
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Male sex cell — Stock Photo
    Male sex cell
    Epithelial lining of Fallopian tube — Stock Photo
    Epithelial lining of Fallopian tube
    Male sex cell — Stock Photo
    Male sex cell
    3d illustration of red transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of red transparent sperm cells swimming towards egg cell.
    Male sex cell — Stock Photo
    Male sex cell
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Male sex cell — Stock Photo
    Male sex cell
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Illustration of human egg cell dividing on blue background. — Stock Photo
    Illustration of human egg cell dividing on blue background.
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    3d illustration of in vitro fertilization of egg cell. — Stock Photo
    3d illustration of in vitro fertilization of egg cell.
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    In vitro fertilisation, computer illustration — Stock Photo
    In vitro fertilisation, computer illustration
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Human ovary structure — Stock Photo
    Human ovary structure