28. Why are rats used in the new research project? (D) A. They are smarter than dogs. B. They are more curious. C. They are more popular than dogs. D. They can reach smaller spaces29. What is the purpose of the new research project? (B) A. To make a comparison. B. To ...
Why do scientists study rats?Rats are often used by scientists to learn more about diseases and medicine.What's so special about rats? This new research shows that a Norway rat has morethan 25,000 genes (基因) and about 90 percent of those genes are just like the onesyou'd find in mi...
If you didn’t already know this, rats are one of the most commonly used animals for research because their brain chemistry is so much like that of human beings. What this means is that these animals are a lot more sophisticated than you may have thought. Their brains are able to help...
While it’s true that thousands of new neurons are produced in the brain’s memory center each day and that exercise promotes their generation, those new neurons will just die off if they’re not being used for anything. Animal studies have shown a correlation between acquiring new skills and...
No abstract is available for this article.doi:10.1002/scin.5591810120Tina Hesman SaeyJohn Wiley & Sons, Ltd.Science News
29. Why do some students still keep the rats after research? B A. They want to teach the rats more skills. B. They have been closely connected with the rats. C. They need to do more experiments in the future. D. They have responsibility for caring for lab animals. 相关知识点: ...
Yes, I think snakes are useful. Snakes play an important role in the natural world. They help to keep the populations of certain prey species, such as mice and rats, under control. In addition, snake venom has been used in medical research to develop drugs to treat human diseases. 蛇在...
Luckily,then,catsprobablyaren’tawarethattodaythey are once again hate-figures, the furry target of spittle-spraying ecologists who, armed with dodgy statistics, accuse cats of wildly “murdering” all the country’ssongbirds.It’sabitmorecomplicatedthanthat, Bradshawshows.Ratsalsokillsongbirds,andcat...
D.Because rats are very brave. 40.Which is the best title of this passage? A.Ways of saving people B.Rats and robots C.After earthquake D. Rats for rescue 答案 36.B 根据第二段 a new research project is using a smaller animal to save lives:the rat知,老鼠可以帮助救援人员找到幸 ...
So when Chinese people talk about the rat, they are likely to see it as greedy and dishonest. For example, there is the phrase “a thief’s eyebrows and a rat’s eyes”, to describe someone who looks untrustworthy.In the real world, rats are known for spreading diseases. It was ...