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  1. en.wikipedia.org › wiki › PhloemPhloem - Wikipedia

    Phloem (/ ˈ f l oʊ. əm /, FLOH-əm) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in particular the sugar sucrose, to the rest of the plant.

  2. The term meristem was coined by Carl Wilhelm von Nägeli. Meristematic tissues have undifferentiated cells, which form the building blocks of the specialized plant structures. Meristematic tissues have living cells with varied shapes.

  3. Rudolf Schock (* 4. September 1915 in Duisburg ; † 13. November 1986 in Düren ) war ein deutscher Opern-, Lied- und Operettensänger in der Stimmlage lyrischer Tenor .

  4. 1945 fue un año común comenzado en lunes según el calendario gregoriano.. Este año marcó el fin de la Segunda Guerra Mundial, tras la derrota de las Potencias del Eje (la Italia Fascista, la Alemania Nazi y el Japón Imperial respectivamente); las fuerzas aliadas (particularmente Estados Unidos y la Unión Soviética) emergen como superpotencias globales y rápidamente establecen su ...

  5. 其实早在1843年,瑞士植物学家耐格利(Carl Nägeli)就写了一篇关于种子和开花植物花粉形成的论文,并非常准确地描述了细胞分裂。 他称之为暂时性细胞母细胞(transitory cytoblasts)的物质,后来被鉴定为染色体。

  6. Later, he also carried on a correspondence with Carl Nägeli, one of the leading biologists of the time, but Nägeli too failed to appreciate Mendel's discoveries. At times, Mendel must have entertained doubts about his work, but not always: "My time will come," he reportedly told a friend, [13] Gustav von Niessl.

  7. it.wikipedia.org › wiki › XilemaXilema - Wikipedia

    Lo xilema secondario viene definito tessuto composto e contiene anche altri due tipi di cellule: il parenchima e le fibre.. Lo xilema primario si trova nei fasci vascolari in struttura primaria (ovvero nelle piante non legnose e nelle parti giovani o non legnose - es. le foglie - delle piante legnose); lo xilema secondario, deposto dal meristema secondario (cambio vascolare) nelle piante legnose.

  1. Searches related to Carl Nägeli

    carl naegeli and c. cramer