而DNA和RNA是遗传信息的传递者，在维持物种的稳定性方面有着不可替代的作用。
DNA and RNA encoded genetic message are important for keeping the stability of the species.
从某个角度来看，调查报告证明了物种的稳定性和对极端多变环境的适应能力远超人们预料。
Viewed one way, the census report might perhaps be read as evidence that life-forms are even more robust, and capable of adapting to extraordinary variations in the environment, than people suspected.
我们做了很多研究，包括生物多样性与物种稳定性的关系，以及森林资源的竞争等。
We've looked at everything from how biodiversity relates to species stability, to competition for forests resources and more.
EST两种技术都可用于对早熟禾属物种的辅助鉴定，但POD技术在稳定性、酶带集中性和可操作性方面优于EST技术。
Both POD and EST techniques could be used for identifying the species of Poa, but POD technique is superior to EST technique in stability, feasibility and band concentricity.
从植物种群水平、植物功能群水平到群落水平，地上生物量的年度间变异性逐渐降低，稳定性逐渐增加。
From population level to functional group level, and then to community level, the yearly-variation of aboveground biomass minimizes gradually and stability increases.
南友K 93 K 154路段，木本草本植物群落物种丰富度明显大于纯草本植物群落，且木本草本植物群落的稳定性高于纯草本植物群落。
Friends of the south section K93K154, woody herb community species richness was higher than that of pure herb community, and woody and herbaceous communities stability than pure herb community.
随着时间的变化，覆盖植物分解速率和养分释放由快变慢，且稳定性因植物种类的不同而存在差异。
With time passing, decomposition rate of mulching plants and release rate of plant nutrients are slowed down gradually, but its stability varies in different plant species.
根据两种田鼠种群波动周期性、波动峰值出现的时间以及特定年份峰值的高度等特征，证明两物种波动均具有不稳定性。
Population fluctuations of both species were erratic in respect to annual occurrence, the time of the peak density of fluctuations within years, and the hight of peak the density a given year.
结果表明：鸢尾属植物种子表面微形态特征具有种的稳定性，与分布区无关；
The results showed that seed coat micro-morphology had the stable characteristics, which was not relative to the distribution zone.
稳定性实验表明，各馏分中的物种信息随时间而不断增多。
The stability experiment revealed that the species information of the fractions increased gradually as time.
由于不同物种的染色体数目、大小和形状有很大区别并且具有稳定性，因此核型可以为某一物种的特征。
A species can be characterized by its karyotype since the number, size, and shape of chromosomes vary greatly between species but are fairly constant within species.
沟谷热带雨林群落结构和功能(光合生产)的稳定性是以多个物种种群以及各层次中个体数量的相对稳定来维持的。
The stability of structure and function (photosynthesis production) of the ravine tropical rain forest is maintained by a lot of tree populations, and relative constancy of individuals in each layer.
沟谷热带雨林群落结构和功能(光合生产)的稳定性是以多个物种种群以及各层次中个体数量的相对稳定来维持的。
The stability of structure and function (photosynthesis production) of the ravine tropical rain forest is maintained by a lot of tree populations, and relative constancy of individuals in each layer.
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