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    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Sperm fertilizing an egg cell — Stock Photo
    Sperm fertilizing an egg cell
    View of Fetus at 15 weeks — Stock Photo
    View of Fetus at 15 weeks
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) in the act of spawning in an Alaska stream during the autumn; Alaska, United States of America — Stock Photo
    Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) in the act of spawning in an Alaska stream during the autumn; Alaska, United States of America
    View of Fetus at 24 weeks — Stock Photo
    View of Fetus at 24 weeks
    Illustration of red human embryo on black background at pregnancy stage of week 22. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 22.
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual computer illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual computer illustration.
    Antelope buck in a grass field during rut; South Dakota, United States of America — Stock Photo
    Antelope buck in a grass field during rut; South Dakota, United States of America
    View of Fetus at 17 weeks — Stock Photo
    View of Fetus at 17 weeks
    Eight-cell embryo — Stock Photo
    Eight-cell embryo
    View of fetus at 30 weeks — Stock Photo
    View of fetus at 30 weeks
    Digital 3d colored illustration of cancer cell in process of mitosis. — Stock Photo
    Digital 3d colored illustration of cancer cell in process of mitosis.
    Illustration of human foetus on week 10 term. — Stock Photo
    Illustration of human foetus on week 10 term.
    Coloured scanning electron micrograph (SEM) of immature dog sperm. — Stock Photo
    Coloured scanning electron micrograph (SEM) of immature dog sperm.
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    View of Fetus at 25 weeks — Stock Photo
    View of Fetus at 25 weeks
    Human fetus developing at week 13, computer illustration. — Stock Photo
    Human fetus developing at week 13, computer illustration.
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Human fetus developing at week 37, computer illustration. — Stock Photo
    Human fetus developing at week 37, computer illustration.
    View of Fetus at 10 weeks — Stock Photo
    View of Fetus at 10 weeks
    3d illustration of damaged spermatozoon in human sperm. — Stock Photo
    3d illustration of damaged spermatozoon in human sperm.
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Illustration of silhouette of pregnant woman and 33 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 33 week foetus.
    Fertilization of healthy human egg — Stock Photo
    Fertilization of healthy human egg
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Liquid nitrogen pouring into cryostorage canister. — Stock Photo
    Liquid nitrogen pouring into cryostorage canister.
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes — Stock Photo
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes
    Human fetus developing at week 12, computer illustration. — Stock Photo
    Human fetus developing at week 12, computer illustration.
    Uterus in female body, anatomical computer illustration. — Stock Photo
    Uterus in female body, anatomical computer illustration.
    View of Fetus at 23 weeks — Stock Photo
    View of Fetus at 23 weeks
    Illustration of red human embryo on black background at pregnancy stage of week 32. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 32.
    Periwinkle pollen grain — Stock Photo
    Periwinkle pollen grain
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    View of Fetus at 28 weeks — Stock Photo
    View of Fetus at 28 weeks
    Illustration of red human embryo on black background at pregnancy stage of week 35. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 35.
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Pregnant woman stretching — Stock Photo
    Pregnant woman stretching
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    3d illustration of cryopreserved foetus frozen into ice cube held by robotic arm. — Stock Photo
    3d illustration of cryopreserved foetus frozen into ice cube held by robotic arm.
    Pollen grains from different plants, computer illustration — Stock Photo
    Pollen grains from different plants, computer illustration
    Cells dividing, computer illustration — Stock Photo
    Cells dividing, computer illustration
    Illustration of transparent cells with splitting nucleus, cell membrane and visible chromosomes. — Stock Photo
    Illustration of transparent cells with splitting nucleus, cell membrane and visible chromosomes.
    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.
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation — Stock Photo
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation
    Prostate tissue showing Iadenocarcinoma — Stock Photo
    Prostate tissue showing Iadenocarcinoma
    Illustration of human fetus at week 38 on black background. — Stock Photo
    Illustration of human fetus at week 38 on black background.
    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.
    Transparent cells on white background, digital illustration. — Stock Photo
    Transparent cells on white background, digital illustration.
    Female reproductive system, illustration. — Stock Photo
    Female reproductive system, illustration.
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Illustration of 4 cell stage egg on blue background. — Stock Photo
    Illustration of 4 cell stage egg on blue background.
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Illustration of silhouette of pregnant woman and 23 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 23 week foetus.
    Fungal cells revealing sporangium with spores — Stock Photo
    Fungal cells revealing sporangium with spores