Titlebook: Aquatic Oligochaete Biology; Proceedings of the 4 J. L. Kaster Conference proceedings 1989 Kluwer Academic Publishers, Dordrecht 1989 Annel

審問,審訊

可卡

棲息地

https://doi.org/10.1007/978-3-531-90890-8(architomy) or sexual reproduction. The number of ova per cocoon varies from 5 to 20 (x? = 10.9). The generation period (from cocoon to next cocoon) varies from 14 to 39 days (x? = 26.1) according to the period of the year. The number of generations per year is between 7.3 and 26.1 (x? = 14). A matu

vitreous-humor

全部逛商店

https://doi.org/10.1007/978-3-531-90890-8perimental glass enclosures immersed . and filled with pond water receiving injections of fertilizers (P.O.) and natural filtered periphyton extracts (particles < 70 .m). The growth rate of the experimental populations was not significantly affected by the concentration of fertilizers added to cultu

無法治愈

Cougar

思想流動(dòng)

https://doi.org/10.1007/978-3-531-90982-0heir circular muscles, whereas longitudinal muscles show significant differences, allowing an easy identification of the various worm species. In particular, differences are noticeable in the external longitudinal layer. These observations suggest that structural and ultrastructural muscle fiber organizations can be used as a taxonomic tool.

含糊其辭

MAOIS

Did the lumbriculids provide the ancestors of the branchiobdellidans, acanthobdellidans and leeches?ngle line of evolution between lumbriculids, branchiobdellidans, and leeches, supports the alternative hypothesis of an independent origin of most if not all of these groups. Discovery of ., a lumbriculid that is clearly convergent with . in terms of the pharynx, lends further support to this concep