交配的

Sexual selection is caused by differences in reproductive success due to competition for mates.

交配竞争中生殖成效的不同导致性选择。

A mating dance has a female bird recovering from injuries after the couple slammed into a snowbank.

在这对夫妇猛烈撞击了一个雪堤后，交配出一只从受伤中复原的雌鸟。

MethodsNeural tubes isolated from the region between midotic placode and third somite of mouse embryo at ED 8.5d were cultured in DMEM/F12 serum-free medium containing basic fibroblast growth factor and epidermal growth factor. The cell cycle of CNCCs was analyzed with flow cytometry, the proliferation capability was determined by MTT method, AP-2α expression was detected by immunocytochemistry as a biological marker of cardiac neural crest cells. The features of migration, multi-directional differentiation were observed as well.

材料与方法成年2月龄C57／BL6小鼠交配，取ED8.5d小鼠胚胎枕中部至第3体节神经管，应用包含碱性纤维生长因子和表皮细胞生长因子的无血清培养基培养，利用MTT法检测细胞增殖能力，利用流式细胞仪检测细胞周期，采用转录激活因子2α(AP-2α，Activator protein-2α)作为其生物学标记物，观察其增殖状况、细胞周期、迁移、分化等生物学特性。

Near the female spider, spider hung in the distance waving constantly have to foot, if fixed Fuzhao female and male spider can be carried out close to the female mating, the male semen to be with their feet into the female spermatheca in .

在靠近雌蛛前，雄蛛在远处不断地挥舞脚须，若雌蛛伏着不动，雄蛛才得以靠近雌蛛进行交配，雄蛛用脚须把精液送进雌蛛的受精囊中。

This suggests that assortative mating has been enhanced in sympatry.

这表明选型交配在在同一个区域生存却不杂交而形成混合物种的动物之中增强了。

Eight years and four generations later he had natural tailless boxers in the show-ring winning competitions.

八年中它们一共交配了四代，最终卡塔那奇将培育出的拳师犬推上了展示评比会，并因此成功获得了奖项。

Tapeworm is a kind of sexual reproduction, although it involves only one parent and rare variation occurs in offspring.

自花传粉或在动物的自我交配，虽然只牵涉一个亲本并子代之间少有差异，但它却是一种有性繁殖。

Before a male prairie vole mates, the males are very friendly.

在交配后，公野鼠的变化也非常有趣。

The results indicate:(1) The buck has some behaviors in mating season, for instance, anogenital sniffing, raking the soil etc. Its bedding and conflict interaction is different, and its anogenital sniffing is different remarkably for buck and does.

研究结果表明：(1)在交配季节，雄狍具有卷唇嗅闻、扒土等行为；雄狍与雌狍的卧息、冲突行为差异显著，尾阴探究差异极显著。

The low fitness of the hybrids would cause selection to favor assortative mating, which would control hybridization.

杂交子代的低适合度将导致选择有利于选型交配，从而控制杂交。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。