Once, before the evolution of plants and animals, bacteria were all there was.
曾经，在植物与动物的进化之前，细菌就是这个星球上生命的全部。
Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans.
生物学上的假设包括生态变化，这些变化是由昆虫和开花植物之间的共同进化，或海洋中以海底生物为食的捕食者的进化所带来的。
These "big bangs" in plant evolution occurred when the genomes of ancient plants duplicated, providing vast Numbers of new genes that could take on new functions and lead to new traits.
这种植物种群数量的“大爆炸”是在古代植物染色体组加倍时发生的。染色体组加倍给植物提供了大量具有新功能的基因，这些新基因又形成了新特性。
Rivers were wide and shallow until the evolution of treelike plants, which got the waterways into line. Christopher Intagliata reports.
河流曾经宽而浅地流淌，直到自然进化出的树状植被才将它们变成线状，克里斯多夫·因塔利亚塔报导。
Mankind is a part of the universe (the nature). After life evolution of several billion years, the DNA of mankind and plants, animals, which have consanguineous relationship.
人是宇宙大自然的一部分。上几亿年的生命进化，人与植物、动物dna是类同的，有密切的血缘关系。天人在合一的层面上是同构的。
Plant secondary metabolites is an adaptation of plants to circumstances, and its result of plant interacting with biotic factor and abiotic factor in the permanent evolution.
植物次生物质是植物对环境的一种适应，是在长期进化过程中植物与生物和非生物因素相互作用的结果。
By showing algae's essential role in the evolution of photosynthesis, it also explores the innumerable species of plants which all have their origins in this one-celled life form.
从展示有关藻类生物的在光学作用进化过程中的必要角色，本纪录片同时显示所有庞大植物品种皆是源自这个单细胞形式生物。
This paper mainly briefly described on the evolution, induction factors and the mechanism of plants immune, and the application in practice.
本文主要对植物免疫的演化、诱导因素、免疫机制及在实践中的应用做简略阐述。
The importance of lignin ranges from its fundamental roles in the evolution of land plants, global carbon cycling, and development, to its role in the biotic and abiotic stress resistance of plants.
它是植物从水生进化到陆生的物质基础，是维持地球碳素循环的重要因素，在植物生长以及对生物与非生物的防御能力方面有着非常重要的作用。
The immune system was not developed until in vertebrates during millions years of animal evolution, and the coevolution of interacting plants and microbes has given rise to the plant defense system.
动物经过数亿年的进化直到脊椎动物阶段出现了渐为完整的免疫系统。
Objective: To confirm the original plant of traditional Chinese drug "Bai Zhi"and to inquire into the cultivation history of "Bai Zhi" and evolution of closely related wild plants of "Bai Zhi".
目的：确认中药白芷的基原植物，探讨其栽培历史变化以及有关近缘野生植物的演化。
That leaves just a billion years or so for the evolution of the diverse menagerie of plants, mammals, insects, birds and other species that populate the earth.
剩下短短1亿年左右的时间完成了多细胞生命向多种动植物圆中的植物、哺乳动物、昆虫、鸟类以及其他在地球上生活的物种的进化。
He visited the island in 1836 aboard the HMS Beagle, recording observations of the plants, animals, and geology that would shape his theory of evolution.
他于1836年乘坐英国皇家海军比格尔号军舰到达该岛，记录了在岛上对植物、动物以及地理风貌的观察情况，从而帮助形成了他的进化理论。
This paper summarizes the expression, origin, evolution, function and regulation of flower color in higher plants.
综述了植物花色的表现、起源与进化、功能及其调控机制。
On account of the advantages of the differential evolution such as searching efficiency and robustness, this paper applies the algorithm and Monte Carlo simulation to a cascade hydro plants system.
利用微分进化算法鲁棒性强、搜索效率高的特点，与蒙特卡洛方法对模型进行求解。
On account of the advantages of the differential evolution such as searching efficiency and robustness, this paper applies the algorithm and Monte Carlo simulation to a cascade hydro plants system.
利用微分进化算法鲁棒性强、搜索效率高的特点，与蒙特卡洛方法对模型进行求解。
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