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    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Primary ovarian follicle — Stock Photo
    Primary ovarian follicle
    In vitro fertilisation, computer illustration — Stock Photo
    In vitro fertilisation, computer illustration
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    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.
    Illustration of pink human egg cell on black background. — Stock Photo
    Illustration of pink human egg cell on black background.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Male sex cell — Stock Photo
    Male sex cell
    Illustration of 4 cell stage egg on black background. — Stock Photo
    Illustration of 4 cell stage egg on black background.
    Sperm spermatozoa swimming towards egg cell, colored digital illustration. — Stock Photo
    Sperm spermatozoa swimming towards egg cell, colored digital illustration.
    3d illustration of ovum egg cell implanting in uterus. — Stock Photo
    3d illustration of ovum egg cell implanting in uterus.
    Magnified digital illustration of 4 cell stage embryo. — Stock Photo
    Magnified digital illustration of 4 cell stage embryo.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Daffodil pollen structure and shape — Stock Photo
    Daffodil pollen structure and shape
    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
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    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.
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Human sperm cells — Stock Photo
    Human sperm cells
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Male sex cell — Stock Photo
    Male sex cell
    Abutilon pollen grain — Stock Photo
    Abutilon pollen grain
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Human ovary structure — Stock Photo
    Human ovary structure
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    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.
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Transparent sperm cells moving towards round blue coloured egg cell. — Stock Photo
    Transparent sperm cells moving towards round blue coloured 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.
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    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.
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Sunflower pollen structure — Stock Photo
    Sunflower pollen structure
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Magnified digital illustration of 2 cell stage embryo. — Stock Photo
    Magnified digital illustration of 2 cell stage embryo.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Alstroemeria anther and pollen — Stock Photo
    Alstroemeria anther and pollen
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Male sex cell — Stock Photo
    Male sex cell
    Magnified digital illustration of 16 cell stage embryo. — Stock Photo
    Magnified digital illustration of 16 cell stage embryo.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Illustration of sperm fertilizing human egg cell. — Stock Photo
    Illustration of sperm fertilizing human egg cell.
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Ovarian cells section — Stock Photo
    Ovarian cells section