1·The alligators would escape and find their way into the New York sewer system where they started reproducing, grew to huge sizes and now strike fear into sewer workers.
短吻鳄会逃跑，找到进入纽约下水道系统的路并开始在那里繁殖，长得巨大，现在还使得下水道工人感到害怕。
2·As Charles Darwin observed, natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others.
正如查尔斯·达尔文（Charles Darwin）所观察到的那样，只要有一种基因组成的个体比其他个体更善于繁殖，自然选择就会起作用。
3·Like many sexually reproducing species, humans have special gonosomes.
像许多有性繁殖的物种一样，人类有特殊的性染色体。
4·For that to be a problem, it would have to be the case that the modified fish were better at surviving and reproducing than those honed by millions of years of natural selection.
这类顾忌要成为一个问题，其前提必须是：经基因改造的鱼其生存和繁殖能力要比那些经过数百万年的自然选择挑选出来鱼更高。
5·Yet the prey can maintain their numbers by growing fast, reproducing fast and eating not just the next victim below them in the food web but also algae.
另外这些猎物可能通过快速生长、快速繁殖和不仅吃它们下级食物链上的生物而且吃海藻，来维持它们的数量。
1·Someday we may be able to take any cell and keep it alive functioning and reproducing itself essentially forever through the use of telomerase.
总有一天，我们也许能够利用端粒酶使任何细胞保持活力，使其正常工作并永久地自我复制。
2·Overlooked in the arguments about the morality of artificially reproducing life is the fact that, at present, cloning is a very inefficient procedure.
对人工复制生命的道德问题的辩论忽略了一个事实：当前，克隆本身是一个效率极低的过程。
3·The tool also helps clients by reducing the time and effort, while improving accuracy and completeness in gathering data and reproducing a problem.
该工具在即提高收集数据和复制问题的准确性和完整性的同时，也有助于减少客户的时间和精力。
4·Introduction of specific genetic material into rapidly reproducing target bacteria can turn the cells into miniature factories for production of useful substances.
如果把特定的基因材料引入高速复制的目标细菌中，细胞就会变成生产有用物质的微型工厂。
5·Before B1 begins, you've got the body working, functioning, in its bodily way--respirating, reproducing the cells, and so forth and so on.
在B1之前,你的身体还在运作,正常运作,也就是机体上的呼吸,复制细胞,诸如此类