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Embryo drawing is the illustration of embryos in their developmental sequence. In plants and animals, an embryo develops from a zygote, the single cell that results when an egg and sperm fuse during fertilization. In animals, the zygote divides repeatedly to form a ball of cells, which then forms a set of tissue layers that migrate and fold to form an early embryo. Images of embryos provide a means of comparing embryos of different ages, and species. To this day, embryo drawings are made in undergraduate developmental biology lessons.

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  • رسم جنيني (ar)
  • Embryonenkontroverse (de)
  • Embryo drawing (en)
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  • الرسم الجنيني هو الرسم التوضيحي للأجنة خلال التخلق المضغي. تتطور أجنة الحيوانات والنباتات من البويضة المخصبة، وهي الخلية الناتجة عن اتحاد البويضة والنطفة خلال التخصيب. تنقسم البويضة المخصبة في الحيوانات بشكل متكرر لتشكل كرة من الخلايا والتي تشكل فيما بعد مجموعة من الطبقات النسيجية التي تهاجر وتنثني لتشكل الجنين المبكر. توفر صور الأجنة وسيلة للمقارنة بين الأجنة في مراحلها التطورية المختلفة وللأنواع المختلفة. إلى يومنا هذا، تُرسم صور الأجنة خلال الصفوف الجامعية لعلم الأحياء الإنمائي. (ar)
  • Die Embryonenkontroverse war ein Streit um Fälschungsvorwürfe gegenüber dem Evolutionsbiologen Ernst Haeckel. In der 1868 publizierten Natürlichen Schöpfungsgeschichte versuchte Haeckel, die noch junge Evolutionsbiologie durch eine laienverständliche Darstellung zu popularisieren. Dabei wurde die Embryologie als zentrales Argument präsentiert: Die Individualentwicklung eines Lebewesens, die Ontogenese, rekapituliere dessen stammesgeschichtliche Entwicklung, dessen Phylogenese (Biogenetische Grundregel), und sei daher nur im Rahmen eines evolutionären Modells zu erklären. (de)
  • Embryo drawing is the illustration of embryos in their developmental sequence. In plants and animals, an embryo develops from a zygote, the single cell that results when an egg and sperm fuse during fertilization. In animals, the zygote divides repeatedly to form a ball of cells, which then forms a set of tissue layers that migrate and fold to form an early embryo. Images of embryos provide a means of comparing embryos of different ages, and species. To this day, embryo drawings are made in undergraduate developmental biology lessons. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Gray41.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Haeckel_drawings.jpg
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