这些生物体通过单性生殖进行繁殖。
在繁殖季节，雌性改变身上的颜色。
青蛙通常在任何适宜的水塘里繁殖。
很多动物只在一年的某个时候交配繁殖。
成功繁殖需要安宁的环境，干扰越少越好。
Successful breeding requires quiet, peaceful conditions with as little disturbance as possible.
大多数爬行动物通过在陆地产卵进行繁殖。
最早的有性繁殖生物是自由漂浮的浮游生物。
The first organisms that reproduced sexually were free-floating plankton.
在繁殖期鸟儿们上岸。
癌细胞的繁殖和生长可通过放射线辐射加以抑制。
The reproduction and growth of the cancerous cells can be suppressed by bombarding them with radiation.
它的繁殖地现在得到了更好的保护。
生殖力是指大量繁殖的能力。
那里的帝企鹅不愿动身去新的繁殖地。
The king penguins there are reluctant to leave for new breeding grounds.
它们甚至不到岸上来繁殖。
它研究传染病和繁殖健康，并提供服务。
It does research on infectious diseases and reproductive health, and also provides services.
栖息地的选择似乎会影响繁殖的成功率。
但理想环境并不总与更大的繁殖成功相关。
But a preferred environment doesn't always seem to correlate with greater reproductive success.
它们每年繁殖两次。
它是怎么繁殖的？
兔子繁殖迅速。
目前该岛是世界上为数不多的小火烈鸟繁殖基地之一。
Now, the island is one of only a handful of lesser flamingo breeding colonies in the world.
因此，发烧会使感染细菌更难获得铁，从而更难繁殖。
Thus, fever would make it more difficult for an infecting bacterium to acquire iron and thus to multiply.
进食、求偶、繁殖，甚至“休息”，都是在不断运动中进行的。
Feeding, courtship, reproduction, and even "rest" are carried out while in constant motion.
因此，所有的生物体都把能量分配给生长、繁殖、维持和储存。
All organisms, therefore, allocate energy to growth, reproduction, maintenance, and storage.
我们在研究中发现，在繁殖方面，严寒会削弱雄性的交配表现。
In studies, we found that when it comes to reproduction, freezing diminishes the mating performance of males.
病毒没有被杀死，所以它是活病毒，它会感染你的肠道系统并繁殖。
The virus is not killed so it's a live virus, which is actually going to infect your intestinal system and reproduce.
它的繁殖速度快得令人难以置信，在条件适宜时，一年可繁殖12代。
It reproduces incredibly quickly, breeding up to 12 generations per year if conditions are favorable.
细胞的繁殖导致有机体的迅速生长。
Multiplication of cells leads to rapid growth of the organism.
猎豹在圈养的情况下繁殖力很差。
应用推荐