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207 results

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    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    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
    Human sperm cells — Stock Photo
    Human sperm cells
    Magnified digital illustration of 4 cell stage embryo. — Stock Photo
    Magnified digital illustration of 4 cell stage embryo.
    Human embryo with four cells — Stock Photo
    Human embryo with four cells
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    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
    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 dividing on blue background. — Stock Photo
    Illustration of human egg cell dividing on blue background.
    Magnified digital illustration of 16 cell stage embryo. — Stock Photo
    Magnified digital illustration of 16 cell stage embryo.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Coloured scanning electron micrograph (SEM) of immature dog sperm. — Stock Photo
    Coloured scanning electron micrograph (SEM) of immature dog sperm.
    3d illustration of sperm cells frozen into ice cubes. — Stock Photo
    3d illustration of sperm cells frozen into ice cubes.
    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.
    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.
    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.
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Human egg cell — Stock Photo
    Human egg cell
    Magnified digital illustration of fertilisation of egg cell. — Stock Photo
    Magnified digital illustration of fertilisation of egg cell.
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Daffodil pollen structure and shape — Stock Photo
    Daffodil pollen structure and shape
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Breast tissue showing adenocarcinoma — Stock Photo
    Breast tissue showing adenocarcinoma
    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).
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Magnified digital illustration of 8 cell stage embryo. — Stock Photo
    Magnified digital illustration of 8 cell stage embryo.
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Primula pollen grain — Stock Photo
    Primula pollen grain
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Male sex cell — Stock Photo
    Male sex cell
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Sunflower pollen structure — Stock Photo
    Sunflower pollen structure
    Female reproductive system — Stock Photo
    Female reproductive system
    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 unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Human sperm cells — Stock Photo
    Human sperm cells
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Female reproductive system — Stock Photo
    Female reproductive system
    Illustration of 2 cell stage egg on black background. — Stock Photo
    Illustration of 2 cell stage egg on black background.
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    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.