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    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    Sperm cells, abstract digital illustration. — Stock Photo
    Sperm cells, abstract digital illustration.
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    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.
    Tiger lily pollen — Stock Photo
    Tiger lily pollen
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Human sperm cells — Stock Photo
    Human sperm cells
    Embryonic stem cells, illustration. — Stock Photo
    Embryonic stem cells, illustration.
    Human embryonic stem cells in Petri dish, digital illustration. — Stock Photo
    Human embryonic stem cells in Petri dish, digital illustration.
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    Broadbean pollen grain — Stock Photo
    Broadbean pollen grain
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Dividing bacteria on tissue surface — Stock Photo
    Dividing bacteria on tissue surface
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Illustration of silhouette of pregnant woman with visible uterus and 8 cell stage embryo. — Stock Photo
    Illustration of silhouette of pregnant woman with visible uterus and 8 cell stage embryo.
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Four-cell embryo — Stock Photo
    Four-cell embryo
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Illustration of 4 cell stage egg on black background. — Stock Photo
    Illustration of 4 cell stage egg on black background.
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Artwork of human fertilization — Stock Photo
    Artwork of human fertilization
    Digital 3d colored illustration of cancer cell in process of mitosis. — Stock Photo
    Digital 3d colored illustration of cancer cell in process of mitosis.
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Human sperm cells — Stock Photo
    Human sperm cells
    3d illustration of egg cell frozen into ice cube. — Stock Photo
    3d illustration of egg cell frozen into ice cube.
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Illustration of human multi-cellular embryo. — Stock Photo
    Illustration of human multi-cellular embryo.
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Normal human egg — Stock Photo
    Normal human egg
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Human x chromosomes — Stock Photo
    Human x chromosomes
    Digital illustration of pollen grain on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grain on anther of Chinese hibiscus flower.
    Magnified digital illustration of fertilisation of egg cell. — Stock Photo
    Magnified digital illustration of fertilisation of egg cell.
    3d illustration of sperm cells frozen into ice cubes. — Stock Photo
    3d illustration of sperm cells frozen into ice cubes.
    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 human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Human sperm cells — Stock Photo
    Human sperm cells
    Alstroemeria anther and pollen — Stock Photo
    Alstroemeria anther and pollen
    Illustration of silhouette of pregnant woman with visible uterus and blastocyst. — Stock Photo
    Illustration of silhouette of pregnant woman with visible uterus and blastocyst.
    Sperm fertilizing an egg cell — Stock Photo
    Sperm fertilizing an egg cell
    Sperm cell in a fallopian tube — Stock Photo
    Sperm cell in a fallopian tube
    3d illustration of in vitro fertilization of egg cell. — Stock Photo
    3d illustration of in vitro fertilization of egg cell.
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Human sperm cells — Stock Photo
    Human sperm cells
    Sperm fertilizing an egg cell — Stock Photo
    Sperm fertilizing an egg cell
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube