• Grasses are simple forms of angiosperms that bear their encapsulated seeds on long stalks.

    草是被子植物的简单形态,种子被包裹在长茎上。

    youdao

  • youdao

  • In a surprisingly short time, angiosperms filled many of the land areas on Hawaii that had been bare.

    在很短的时间内,被子植物就覆盖了夏威夷许多原本光秃秃的土地。

    youdao

  • Angiosperms begin as free zygotes immersed in a fluid.

    被子植物开始时是浸沉在液体中的游离合子。

    youdao

  • Heterostyly has been reported in 31 families of angiosperms.

    据报道,在被子植物的约31个科中有异型花柱植物。

    youdao

  • They include one fungus, one fern, 5 gymnosperms and 153 angiosperms.

    其中真菌和蕨类各1种、裸子植物5种、被子植物153种。

    youdao

  • Filament 1. The stalk of the stamen bearing the anther in angiosperms.

    花丝:1。被子植物中,雄蕊支撑花药的柄。

    youdao

  • Advance in polyembryonic seedling (PS) in angiosperms is summarized in the paper.

    本文综述了被子植物多胚苗的研究进展。

    youdao

  • In angiosperms there are 475 species of monocotyledon and 567 species of dicotyledon.

    被子植物中单子叶植物475种,双子叶植物567种。

    youdao

  • The female gametophyte is reduced but larger than in angiosperms; it is not autotrophic.

    裸子植物的雌配子体简化,但较被子植物体的体积大,不能自养。

    youdao

  • The female gametophyte is reduced but larger than in angiosperms; it is not autotroph ic.

    裸子植物的雌配子体简化,但较被子植物体的体积大,不能自养。

    youdao

  • "The evolution of wind pollination in angiosperms." Trends in Ecology and evolution 17:361-369.

    《被子植物的风媒进化》——生态学及进化论趋势17:361 - 369。

    youdao

  • In angiosperms, after the floral transition, the inflorescence meristem produces floral meristems (FMs).

    被子植物的花由花分生组织(又称花原基)形成。

    youdao

  • These genes are characterized by several distinct motifs and exist in ferns, gymnosperms, and angiosperms.

    该类基因具有特征性基元,并存在于蕨类植物、裸子植物和被子植物中。

    youdao

  • Orchidaceae is one of the largest families of angiosperms which has tremendous ornamental and economic value.

    兰科是被子植物最大科之一,兰科植物具有巨大的观赏价值和经济价值。

    youdao

  • Rock plant, based on natural taxonomy system is classified into bryophyte, pteridophyte, gymnosperm, angiosperms;

    岩生植物按自然分类系统分为苔藓植物、蕨类植物、裸子植物、被子植物。

    youdao

  • Modern gymnosperms such as ferns and gingko are typically not very nutritious and are tougher to chew than angiosperms.

    现代裸子植物,诸如蕨类植物和银杏,和被子植物相比明显的非常没有营养和粗硬。

    youdao

  • However, affirmative conclusion about the mechanism of producing the PS material in angiosperms is not still formed and obtained.

    关于被子植物多胚苗的发生机理目前还没形成统一的定论。

    youdao

  • The fossil Brachycera contain a wider variety of flower visitors, which provide unique material for studying the origin of angiosperms.

    虻类化石中的许多类群都有访花习性,它们为研究被子植物的起源提供了独特材料。

    youdao

  • Flower, as the special reproductive organ of the Angiosperms, are believed to be morphologically the most complicated parts of Angiosperms.

    花,作为被子植物独有的繁殖器官,被认为是被子植物植物体形态上最复杂的一部分。

    youdao

  • Recent phylogenetic analyses of multiple molecular data sets indicate that Trimeniaceae is one of the basal taxa of the extant angiosperms.

    最新的分子系统发育研究显示,腺齿木科是现存被子植物的重要基部类群之一。

    youdao

  • “Abiotic pollination: an evolutionary escape for animal-pollinated angiosperms.” Philosophical Transactions of the Royal Society of London B 333: 217-224.

    《无生命授粉:虫媒传粉的被子植物逃亡性进化》——英国伦敦皇家学会哲学学报 333: 217-224.

    youdao

  • “A probable pollination mode before angiosperms: Eurasian long-proboscid scorpionflies.” Science 326: 840-847 and Ollerton, J. and Coulthard, E. 2009.

    《有关被子植物之前的授粉方式的推断:欧亚长吻蝎蛉》——科学 326: 840-847及Ollerton,J.和Coulthard, E. 2009.

    youdao

  • Palaeobotany will introduce the structure and classification of Pteridophyte, Gymnosperms and Angiosperms, and introduce the evolvement phases of the Plants.

    古植物学重点介绍蕨类植物、裸子植物和被子植物各纲的结构和分类以及植物界的演化的阶段性。

    youdao

  • The delicate stems, thin and highly dissected leaves and swollen bases of the leaf stalks imply Archaefructus as aquatic and herbaceous angiosperms in nature.

    古果属茎枝细弱、叶子细而深裂、叶柄基部多膨突等特征,反映了该属的水生草本特征。

    youdao

  • There are 239 species under 88 families, in which 4 species are pteridophyta, 6 species are gymnosperms and 229 species are angiosperms. They can kill insects.

    初步调查统计共有88科2 39种,其中蕨类植物4种,裸子植物6种,被子植物2 2 9种,这些农药植物均具有杀虫作用。

    youdao

  • Contrary to common variation type in Angiosperms, the variation from high unsymmetric karyotype to low unsymmetric karyotype was found in existence in Gymnosperm.

    与一般植物染色体的常见变异形式相反,在裸子植物中存在从高不对称性到低不对称的变异形式。

    youdao

  • The evidence from molecular clocks, fossils and geographic distribution data on the origin time of angiosperms has been greatly accumulated in the past two decades.

    分析了用于推测被子植物起源时间的分子、化石和地理分布证据。

    youdao

  • He also observed that gymnosperm ovules were not enclosed in an ovary wall, leading to the establishment of one of the basic differences between angiosperms and gymnosperms.

    他还观察到裸子植物的胚珠并不是被子房壁包围,这个发现直接导致了被子植物和裸子植物之间最根本的几点区别的建立。

    youdao

  • He also observed that gymnosperm ovules were not enclosed in an ovary wall, leading to the establishment of one of the basic differences between angiosperms and gymnosperms.

    他还观察到裸子植物的胚珠并不是被子房壁包围,这个发现直接导致了被子植物和裸子植物之间最根本的几点区别的建立。

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定