单词查询

gymnosperms

美[dʒɪm'nɒspəmz],英[dʒɪm'nɒspəmz],

释义

n. 【植】裸子植物; 网络释义: 裸子植物类;裸子植物门;种子植物只分爲裸子植物;

例句

Its native gymnosperms could evolve into a few species capable of growing in the warm, moist forests of Queensland.
本地的裸子植物可进化成能在昆士兰温暖湿润林区的树种。
It has enabled gymnosperms and angiosperms to colonize dry terrestrial habitats where lower plants are unable to establish themselves.
它使裸子植物和被子植物得以在干旱的陆地上繁衍生息,而低等植物是无法做到的。
Only dicotyledonous flowering woody plants and most gymnosperms have true twigs; monocotyledons and tree ferns do not.
只有双子叶的木本开花植物和大部分的裸子植物才有真正的小枝,而单子叶植物和树蕨类植物则没有。
Primitive tropical gymnosperms abundant in the mesozoic, now reduced to a few scattered tropical forms.
跃于中生代,现在退化为一些分散的热带形式。
Based on this database, we chose the part of gymnosperms and gave a discussion to the features of its chromosomes' evolution and variation.
基于数据库的统计资料,我们选取了裸子植物类群对其染色体的变异和演化特征做了探讨。
In gymnosperms , the egg into the neck with only one of the two sperm and egg fusion.
在裸子植物中,进入颈卵器的两个精子只有一个与卵融合。
Late Permian a ginkgo, cycads, the cycads, conifers and other gymnosperms , the show began with the appearance of health.
晚二叠世出现了银杏、苏铁、本内苏铁、松柏类等裸子植物,开始呈现中生带的面貌。
Used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order cycadofilicales.
用于某些分类系统中;一个灭绝的裸子植物化石群,与苏铁蕨目同域。
An ancestral fossil type from which modern gymnosperms are thought to have derived.
A multicellular, often flask - shaped, egg - producing organ occurring in mosses, ferns, and MOST gymnosperms.