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345 results

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    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Human sperm cells — Stock Photo
    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.
    Male sex cell — Stock Photo
    Male sex cell
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer 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.
    Female reproductive system — Stock Photo
    Female reproductive system
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Human sperm cells — Stock Photo
    Human sperm cells
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Illustration of a 8 cell stage egg on black background. — Stock Photo
    Illustration of a 8 cell stage egg on black background.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Illustration of 4 cell stage egg on black background. — Stock Photo
    Illustration of 4 cell stage egg on black background.
    Complex mucosal folding of seminal vesicle — Stock Photo
    Complex mucosal folding of seminal vesicle
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Human four-cell embryo, digital illustration. — Stock Photo
    Human four-cell embryo, digital illustration.
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    3d illustration of cancer cell in process of dividing. — Stock Photo
    3d illustration of cancer cell in process of dividing.
    Broadbean pollen grain — Stock Photo
    Broadbean pollen grain
    Digital illustration of pollen grain on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grain on anther of Chinese hibiscus flower.
    Transparent sperm cells moving towards round blue coloured egg cell. — Stock Photo
    Transparent sperm cells moving towards round blue coloured egg cell.
    Male sex cell — Stock Photo
    Male sex cell
    3d illustration of egg cell frozen into ice cube. — Stock Photo
    3d illustration of egg cell frozen into ice cube.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Human sperm cells — Stock Photo
    Human sperm cells
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Human sperm cells — Stock Photo
    Human sperm cells
    Fertilization of human egg — Stock Photo
    Fertilization of human egg
    Broadbean pollen grain — Stock Photo
    Broadbean pollen grain
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Male sex cell — Stock Photo
    Male sex cell
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Human x chromosomes — Stock Photo
    Human x chromosomes
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Zygote development 24-36 hours after fertilization — Stock Photo
    Zygote development 24-36 hours after fertilization
    Eight-cell embryo — Stock Photo
    Eight-cell embryo
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Daisy pollen grain — Stock Photo
    Daisy 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.
    Normal human egg — Stock Photo
    Normal human egg
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    German chamomile flower pollen grain — Stock Photo
    German chamomile flower pollen grain
    Normal sperm cells — Stock Photo
    Normal sperm cells
    3d illustration of transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of transparent sperm cells swimming towards egg cell.
    Illustration of transparent cells with splitting nuclei, cell membrane and visible chromosomes. — Stock Photo
    Illustration of transparent cells with splitting nuclei, cell membrane and visible chromosomes.