如果第二年有足够的雨水形成另一个湖泊,卵就会孵化,小虾会再次快速地经历生长、成年、产卵和死亡的循环。
If sufficient rain falls the next year to form another lake, the eggs hatch, and once again the shrimps pass rapidly through their cycle of growth, adulthood, egg-laying, and death.
雄性站在那里保护这个卵,用双脚保持它的平衡,并用被称为育儿袋的有羽毛的皮肤覆盖着它。
Males stand and protect the egg by balancing them on their feet and covering them with feathered skin known as a brood pouch.
生物学对动物是怎么从一个受精卵发展一个完全成形的有机体有一个相当好的理解。
Biology has a pretty good understanding of how animals develop from a fertilized egg to a fully formed organism.
她的研究团队同时还调查了有多少猪鼻龟和龟卵流入了当地的市场,以及被沿河与沿海的村庄吃掉。
Her team also studied how many turtles and eggs passed through local markets and were consumed in villages along rivers and the coast.
得出这一结论的原因如下:有的病例中,同卵双胞胎之一得了自闭症而另一个却没有,他们有相同的基因,因此环境因素应该对自闭症起了作用。
One reason they think so: there are cases in which one identical twin is autistic and the other is not; the two have identical genes, so environmental factors must contribute.
一个健康的受精卵有46个染色体(23对),但在它能分化之前,它必须先分为23个一组,形成极体。
A healthy egg carries 46 chromosomes - 23 pairs - but before it can be fertilised it needs to ditch 23 of these, which it packages into a structure called a polar body.
尽管它们的饮食习惯令人讨厌,但是它们是有献身精神的父母,会守卫自己的卵和蝌蚪,使其免遭捕食。
Despite their unsavoury dining habits they are devoted parents and will guard spawn and tadpoles from predators.
Hauser说,有证据表明,六氯苯对一种叫黄体酮的激素有抑制作用,这种激素对卵的植入有很重要的作用。
Hauser said there is evidence that HCB suppresses a hormone called luteal progesterone, which is important for egg implantation.
当我们成熟,不久我们就编织第二个卵也就是所谓的蚕茧,经历一场蜕变,再次从一种多足昆虫变成一种可以飞行的有翅膀生物。
As we mature, in time we weave a second egg known as a cocoon, and undergo a metamorphosis yet again from a multi-legged insect into a winged creature that takes flight.
她们是腹部连体的同卵双胞胎,各有两只胳膊和两条腿,有各自的心脏和消化道,但共用一个肝脏。
Identical twins joined at the belly, each had two arms and two legs, individual hearts and digestive tracts, but they Shared a liver.
一个经过基因改造的青蛙卵被放入电压钳系统,然后一种有气味的物质被溶入有青蛙卵的缓冲液中。
An engineered egg is placed in a voltage clamp system and an odorant is dissolved in the buffer solution in which the egg is floating.
如果蚊子的嗅觉感受器对这种物质有反应,那么青蛙卵的电学特性将会改变并可被检测出。
If the mosquito receptors react to the compound, the electrical properties of the egg change in a measurable fashion.
噻嗪酮对褐稻虱的杀卵作用有两个途径:刚孵化接触而死或阻止卵的发育。
The ovicidal action of buprofezin has two ways: killing new hatching nymphs by contacting, and inhibiting the development of eggs embryo.
实验和分析表明,卵柱体背风面上的激波对不对称的旋涡谱有很大的影响。
Tests and analyses have shown that the shock on the leeside surface has a large influence to the asymmetric vortex pattern.
通过适量地下水在育苗中的使用,使蟹苗在抱卵率、大眼幼体产量、生长速度及成活率等技术指标上有明显提高,这对中华绒螯蟹育苗研究和指导养殖有重要意义。
The egg mass rate, megalopa yield, growing rate and the survival rate of the young Chinese mitten crab are promoted significantly while proper ratio ground water is applied to the cultivation.
观测到眶下孔数目为单孔的占93%,呈卵园形,有副孔的占7%,并测量了它们在上颌骨的确定位置。
The results show that 93% of the suborbital foramen is an oval-shaped mono-foramen and 7% has a paraforamen, their exact positions on the maxilla being measured.
在重度受害林分中,单株沙棘树上沙棘木蠹蛾卵块数量最多的为11个,最少的为1个,有卵株率达72 %。
In the heavily-infested woodland, 72% of trees were found to have egg masses, ranging from 1 to 11 per tree.
这似乎显示平背龟的龟卵比起其它种海龟卵,对于高温高湿有较高的容忍力。
Natator depressus eggs may be more tolerant of high incubation temperatures and severe moisture stress than those of most other sea turtle species.
其中主要的变异有两类,即多卵卵器胚囊(53.3%)和双套结构胚囊(6.3%)。
Of most two kinds of variant embryo sac, referred as poly egg apparatus embryo sac (53.3%) and double set of embryo sac (6.3%) were found.
白背飞虱卵在春江06的水渍状产卵部位有很高的死亡率。
WBPH eggs showed a high mortality in watery lesions at oviposition sites of CJ-06.
来自许多国家的生育、妇女健康领域的顶级学者聚集在伯林·格姆召开全天的听证会,评估捐卵者面临的已知风险有多少。
Many of the nation's top scholars in fertility and women's health gathered in Burlingame for an all-day hearing to assess how much is known about the risks egg donors face.
有时,一只夜鹰在林中,距离我的周遭只有几英尺,盘旋不已,飞,飞,好像有绳子牵住了它们一样,也许因为我在它们的鸟卵近旁。
Sometimes one would circle round and round me in the woods a few feet distant as if tethered by a string, when probably I was near its eggs.
我有一些真揪的很悲伤的消卵息。
对隶属于藻物界卵菌门卵菌纲的宁夏卵菌进行了初步整理,共发现卵菌有1门1纲4目6科10属67种,分别寄生于176种植物上,引起植物病害或腐生于土壤中。
Oomycetes in Ningxia were investigated and classified. It was found that there were 67 species, hosting in 176 plants, respectively, which belonged to 1 phylum, 1 class, 4 families, 10 genera.
对隶属于藻物界卵菌门卵菌纲的宁夏卵菌进行了初步整理,共发现卵菌有1门1纲4目6科10属67种,分别寄生于176种植物上,引起植物病害或腐生于土壤中。
Oomycetes in Ningxia were investigated and classified. It was found that there were 67 species, hosting in 176 plants, respectively, which belonged to 1 phylum, 1 class, 4 families, 10 genera.
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