交配的

The normal fertilization could be finished and the first and second cleavages were observed.

将1—3细胞期的22个重构胚胎移入4只自然交配后怀孕1天的昆明白小鼠的输卵管中，结果无异种重构胎儿出生，子宫中也未发现有死胎等。

Behavioral ecologists study the behaviours of individual organism s as they react to their environment.

行为生态学研究生物个体的行为，包括取食技术、对掠食的生存适应、交配以及对环境变化的应答等。

Behavioral ecologists study the behaviours of individual organisms as they react to their environment.

行为生态学研究生物个体的行为，包括取食技术、对掠食的生存适应、交配以及对环境变化的应答等。

According to reports, the former Goodie backed footage of two sparrows mating with the words: The female is asking for it - and getting it, basically ...

根据报道，这个先前的好人给两只麻雀的交配做了如下的解说：母麻雀想要，几乎到了高潮。。。

These tigresses mate with a territorial male who usually has a larger range overlapping those of three females.

雌虎会与一只具有领域性的雄虎交配，这只雄虎有更大的领地，覆盖三只雌虎的领域范围。

Both aim to avoid pepetatingdeleteious taits by caefully selecting beeding pais andculling any animals that cay genetic anomalies.

两者都通过精心选择交配繁殖的对子，剔除任何携带异常基因的动物的方法，达到避免劣性这一目的。

Because this population of birds is so small, conservationists worry about inbreeding, and are considering moving in some chickens from Kansas, where they are more numerous, to boost numbers diversify the gene pool.

由于这里的北美草原松鸡数量很少，自然资源保护者们担心这会导致同系交配，所以正考虑从数量较多的 Kansas 转移一些过来，这样就能使松鸡的基因多样化了。

The establishment of polyploids is favored by differential niche preference, low dispersal, a selfing or asexual mating system, high fecundity , and a perennial life history .

对不同生态位的偏好，低分散，一个自交或无性交配系统，繁殖力高和多年的生活史都有利于多倍体的建立。

Sure, she may be just a small aquatic crustacean, but the female sea louse is No. 1 on our list and here's why. First, she's lured by the male into his bachelor burrow for mating where she discovers that she's actually in a harem with 25 other pregnant females!

的确，她可能不过是一种小型水生甲壳类动物，但是雌海虱高居榜首的原因如下：首先，她被雄性海虱骗入其单身洞穴交配时才发现，她只是其这只雄性海虱众多妻妾中的一员，还有其他25只已经怀孕的雌性海虱也在洞中！

Major new findings of this study:(1) We developed a cost-effective,efficient,and reliable video recording system for observing and recording the mating behaviour of whitefly on live plants.With this novel system,a large number of accurate and continuous recordings of courting and mating behaviour of this insect can be made on live plants under more natural condition.

本研究的主要创新之处(1)首次自主设计组装了一套经济可靠的录像观察和记录装置，可连续几天详细记录烟粉虱成虫在活体植物上较自然状态下的求偶和交配行为。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐