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    Illustration of human foetus on week 5 of pregnancy. — Stock Photo
    Illustration of human foetus on week 5 of pregnancy.
    Colored scanning electron micrograph of pollen grains from convolvulus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from convolvulus flower.
    Antelope buck and doe in a grass field during rut; South Dakota, United States of America — Stock Photo
    Antelope buck and doe in a grass field during rut; South Dakota, United States of America
    Illustration of silhouette of pregnant woman and 17 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 17 week foetus.
    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 cells — Stock Photo
    Human sperm cells
    Human two-cell embryo, digital illustration. — Stock Photo
    Human two-cell embryo, digital illustration.
    View of Fetus at 25 weeks — Stock Photo
    View of Fetus at 25 weeks
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells. — Stock Photo
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells.
    Roquefort cheese and digital illustration of fungus Penicillium roqueforti. — Stock Photo
    Roquefort cheese and digital illustration of fungus Penicillium roqueforti.
    Illustration of red human embryo on black background at pregnancy stage of week 20. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 20.
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen.
    Sperm fertilizing an egg cell — Stock Photo
    Sperm fertilizing an egg cell
    Pregnant woman and 6 week embryo — Stock Photo
    Pregnant woman and 6 week embryo
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Illustration of silhouette of pregnant woman and 36 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 36 week foetus.
    Abstract pollen grains from various plants differ in size and shape, computer illustration. — Stock Photo
    Abstract pollen grains from various plants differ in size and shape, computer illustration.
    Human fetus developing at week 15, computer illustration. — Stock Photo
    Human fetus developing at week 15, computer illustration.
    Abstract fungus, scientific digital illustration. — Stock Photo
    Abstract fungus, scientific digital illustration.
    3d illustration of broken or defective white colored x and y chromosomes. — Stock Photo
    3d illustration of broken or defective white colored x and y chromosomes.
    Illustration of silhouette of pregnant woman and 9 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 9 week foetus.
    Sperm cells, abstract digital illustration. — Stock Photo
    Sperm cells, abstract digital illustration.
    Parasites attacking sperm cell, conceptual illustration. — Stock Photo
    Parasites attacking sperm cell, conceptual illustration.
    Cryogenic human egg storage for In vitro fertilisation . — Stock Photo
    Cryogenic human egg storage for In vitro fertilisation .
    Pregnant woman stretching — Stock Photo
    Pregnant woman stretching
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Abortion of human fetus, conceptual digital illustration. — Stock Photo
    Abortion of human fetus, conceptual digital illustration.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Illustration of red human embryo on black background at pregnancy stage of week 30. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 30.
    Human embryonic stem cells in Petri dish, digital illustration. — Stock Photo
    Human embryonic stem cells in Petri dish, digital illustration.
    3d digital illustration of unicellular yeast fungus Candida auris. — Stock Photo
    3d digital illustration of unicellular yeast fungus Candida auris.
    Illustration of human foetus on week 15 term. — Stock Photo
    Illustration of human foetus on week 15 term.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Illustration of human foetus on week 9 on blue background. — Stock Photo
    Illustration of human foetus on week 9 on blue background.
    Parasites attacking spermatozoons fertilizing egg cell. — Stock Photo
    Parasites attacking spermatozoons fertilizing egg cell.
    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
    Illustration of overweight woman with visible uterus on black background. — Stock Photo
    Illustration of overweight woman with visible uterus on black background.
    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.
    Bag containing donated human blood, placenta and umbilical cord. — Stock Photo
    Bag containing donated human blood, placenta and umbilical cord.
    Sperm spermatozoa swimming towards egg cell, colored digital illustration. — Stock Photo
    Sperm spermatozoa swimming towards egg cell, colored digital illustration.
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Digital illustration of pollen grain on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grain on anther of Chinese hibiscus flower.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Human fetus developing at week 21, computer illustration. — Stock Photo
    Human fetus developing at week 21, computer illustration.
    Male reproductive system — Stock Photo
    Male reproductive system
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Kingella kingae bacteria, computer illustration. K. kingae is a Gram-negative coccobacillus that is part of the normal flora of children's throats. It can occasionally cause invasive disease, primarily osteomyelitis (bone infection) — Stock Photo
    Kingella kingae bacteria, computer illustration. K. kingae is a Gram-negative coccobacillus that is part of the normal flora of children's throats. It can occasionally cause invasive disease, primarily osteomyelitis (bone infection)
    Embryo at blastocyst stage — Stock Photo
    Embryo at blastocyst stage
    View of Fetus at 39 weeks — Stock Photo
    View of Fetus at 39 weeks
    View of fetus at 6 weeks — Stock Photo
    View of fetus at 6 weeks
    Human sperm and egg — Stock Photo
    Human sperm and egg
    Abstract female body with visible uterus, digital illustration. — Stock Photo
    Abstract female body with visible uterus, digital illustration.
    Human sperm approaching egg cell — Stock Photo
    Human sperm approaching egg cell
    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 Full-term fetus — Stock Photo
    View of Full-term fetus
    Illustration of silhouette of pregnant woman and 40 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 40 week foetus.
    Pollen grains from different plants, computer illustration — Stock Photo
    Pollen grains from different plants, computer illustration
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Uterus in female body, anatomical computer illustration. — Stock Photo
    Uterus in female body, anatomical computer illustration.