Only one sperm fertilises an egg.
只有卵受。
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Where they, too, will essentially fertilise the mangrove.
在洞底,基本上它们就是在给红树林施肥。
But the one with the ability to fertilise itself is called Oloton.
但是有受精能力一种叫做奥洛顿。
They're drinking nectar from plants that have been fertilised by rotted fish.
它们正在吸食植物花蜜,而那些腐烂鱼早已成为这些植物肥料。
Two things are fertilising this growth.
有两件事森林覆盖率增长。
Fertilising these eggs for experimentation is forbidden in America.
美国禁止为实验用卵细胞受精。
This increase in cAMP then activates the sperm, and lets them start swimming and searching for an egg to fertilise.
cAMP增加会激活精子活力,让它们开始移动并寻找卵子受精。
Strangely fertilising, in the long run, does a wasted effort of attention often prove.
从长远来, 奇怪施肥往往会证明注意力浪费。
The right-hand one was conceived in the normal way, by a sperm fertilising an egg.
右边那个是以正常方式受孕,由精子卵子受精。
Then, the emergence of the lush green vegetation fertilised by those salmon to sustain the bears when they emerge from hibernation.
之后,当熊从冬眠中苏醒时候,那些经过腐烂鲑鱼郁郁葱葱植物又出现,维持着熊生存。
The cattle fertilise the soil and then each field is left for 60 days to restore itself before it's grazed again.
牛群活动让土壤变得更肥沃,然后每一块牧区都会空闲60天,以等它恢复原状,之后再让牛过来吃草。
They know that sperm fertilises egg, and one cell grows to two, four, eight, and so on.
他们知道精子卵子受精,一个细胞长成两个、四个、八个,等等。
Babies start to grow in the womb when a sperm cell meets an egg and fertilises it.
当精子细胞与卵子相遇并其受精时,婴儿就开始在子宫中生长。
As yet I have not found a single terrestrial animal which can fertilise itself.
到目前为止, 我还没有发现一种可以自我施肥陆生动物。
They fertilised the damaged soil, and with time and effort, the island began to upgrade its condition.
他们对受损土壤施肥, 随着时间推移和努力,该岛开始改善其状况。
Only after pollination can the next process occur-fertilisation-when the pollen carried from another plant fertilises a female ovule to make new seeds.
只有经过授粉,下一个程序受精——被带到另一个植物上花粉在磁性胚珠上授精来结成新种子——才会发生。
It works on the goats, who leave the tea untouched and instead eat up the weeds, fertilising the tea plants with their droppings.
这对山羊很有效,它们不碰茶叶,取而代之仅吃周围杂草,其排泄物为茶树施肥。
Since then it has been shown that these ovarian stem cells can develop into eggs, be fertilised and produce perfectly healthy mouse pups.
迄今已经证实,此类卵巢干细胞能够分化成为卵细胞,卵细胞在受精后还能发成健康鼠宝宝。
Its richest parts are those where waves and currents bring fertilising nutrients to surface waters that are bathed in sunlight.
当海浪和洋流把大量营养物质翻上 沐浴着阳光表层海水时 那里便成最热闹用餐场所。
Tomatoes are able to fertilise themselves, without need of a pollinator, yet even this self-pollination can be assisted by a bee visiting a flower.
番茄可以自我繁衍,不需要传粉者,但是如果有蜜蜂来传播花粉,这种自花授粉植物也会得到帮助。
(Female spiders can do this because they store sperm for a period of days or weeks before they use it to fertilise their eggs.)
(雌性蜘蛛之所以能这样做是因为她们能将精液存留数日或几周时间,然后决定是否用其对卵子受精)。
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