查询词典 sexual reproduction

In some organisms, sexual reproduction has been shown to enhance the spread of parasitic genetic elements e.g.

在一些生物中，已证明有性繁殖提高了寄生性基因元件的传播。

Most of the endangered plant has the difficulty in sexual reproduction.

大多数的濒危植物都存在有性生殖障碍，通过对珙桐的大小孢子及雌雄配子体形成的研究，发现在这一过程没有异常。

Such reassortment of genes is the main source of genetic variation during sexual reproduction.

交换是有性繁殖中遗传变异的主要来源之一。

Sexual reproduction of animals was wildly distributed in nature and also was the main reproductive way.

动物的有性繁殖是自然界普遍的遗传现象，是繁殖后代的主要方式，作为重要经济昆虫的家蚕也是如此。

Question is when sexual reproduction itself evolved.

何时产生的，另一个问题是如何产生的。

The potential of sexual reproduction in the three species was still very great.

可见三种橐吾有性生殖的潜力依然很大。

The ascospores, on the other hand, are produced by following sexual reproduction.

另一方面，子囊孢子是在有性生殖之后产生的。

IN ALL species that practise sexual reproduction, males and females show gender-specific behaviours.

在所有有性生殖的物种中，雄性和雌性表现出各自性别特异的行为。

The stage of adolescence in which an individual becomes physiologically capable of sexual reproduction.

青春期青少年阶段，在生理上个人有能力进行有性繁殖主人公的地窖是一个在人们失去了自我的城市里个人孤独的贴切象征。

Vegetative parts All parts of a plant except for those involved in sexual reproduction.

营养部位：植物体除了有性繁殖所涉及的结构外的其他部分。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。