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  3. Carotenoids in fish I. Carotenoids in the eggs of Acipenser ruthenus ruthenus L. (Acipenseridae) from the Danube

    The author investigated the presence of various carotenoids in the unfertilized eggs of the Acipenser ruthenus ruthenus L. (Acipenseridae) and...

    B. Czeczuga in Hydrobiologia
    Article 01 January 1972

  4. Functional organization of the nucleus in the oogenesis of Chrysopa perla L. (Insecta, Neuroptera)

    On the basis of light, autoradiographic (uridine- 3 H incorporation) and electron microscopic investigation changes of nuclear structures were examined...

    M. N. Gruzova, Z. P. Zaichikova, I. I. Sokolov in Chromosoma
    Article 01 December 1972

  5. Carotenoids in fish II. Carotenoids and vitamin A in some fishes from the coastal region of the Black Sea

    The presence of various carotenoids and vitamin A in seven species of fish from the coastal region of the Black Sea was investigated by means of...

    B. Czeczuga in Hydrobiologia
    Article 01 February 1973

  7. Das Skelet

    Das Skelet ist ein kennzeichnendes Organsystem der Vertebrata. Kennzeichnend ist es einmal durch sein Baumaterial, weiterhin durch seine Lage und...
    J. Versluys in Vergleichende Anatomie der Wirbeltiere
    Chapter 1971

  8. Metazoa

    Vielzellige Tiere, deren Zellen zu Geweben vereinigt sind (daher Gewebetiere). Ihr Körper läßt sich auf die Grundform der Gastrula zurückführen und...
    C. Claus in Lehrbuch der Zoologie
    Chapter 1932
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