Animal care and use play a pivotal role in the research process. Ethical concerns on the use of animals in research have promoted the creation of a legal framework in many geographical areas that researchers must comply with, and professional organizations continuously develop recommendations on ...
23 Passage 1Plants and animals that have been studied carefully seem to have built-in clocks. These biological clocks, as they are called, usually are not quite exact in measuring time. However, they work pretty well because they are "reset" each day, when the sun comes up.Do pigeons us...
You’ll see a lot of interesting animals and beautiful trees. It’s one of the best places I’ve been to. M: Okay. I’ll put it on my list. Text 9(172词)请求搭便车 W: Hello, Michael. M: Hi, Sarah. W: Are you attending the conference tomorrow morning at the Shelton Hotel? M...
6. At the end of 19th century, which public transport did people use to go to bondi? 7. When did the British Royalty first visit Bondi? 8. Which Olympic event did Bondi hold in 2000 Sydney Olympic games? 9. What would be damaged if the stadium was built for that Olympic event? Ques...
Do you believe free condoms should be distributed in schools? Regular exercise will improve your health. Restaurants should post all ingredients to prevent allergic reactions. Do you believe fast food should come with a warning label? The use of animals in medical research is a necessary evil. ...
The Value of Animal ResearchTo paraphrase 18th-century statesman Edmund Burke, "allthat is needed for the triumph of a misguided cause is thatgood people do nothing." One such cause now seeks to endbiomedical research because the theory that animals have rights 【M1】___ruling out their usage...
encouraged readers not to use anything that comes from or is tested in animals-no meat, no fur, no medicines. Asked what will happen when epidemics(传染病) return, she said. “Don’t worry, scientists will find some way of using computers.” Such well-meaning people just don’t ...
When we think of animals and plants, we have a pretty good way of dividing them into two distinct groups: one turns sunlight into energy and the other has to eat food to make its energy. Well, those dividing lines come crashing down with the discovery of a sea slug(海蛞蝓)that is trul...
(限度)ofonehundredandtwentydecibelsinoceans.Theyhavefoundthatnoisesatthatlevelcanfrightenwhales(鲸鱼).AteamofAmericanandCanadianscientistsdiscoveredthatloudernoisescanseriouslyhurtsomeanimals.Theresearchteamfoundthatpowerfulunderwaterexplosionswerecausingwhalesintheareatolosetheirhearing.Thisseriouslyaffectedthewhales'...
12. One of the ___(good) things about this job is that you can observe animals in their natural environment. 13. Natural dyes are also becoming more ___(popularity)with consumers for whom caring for the environment is a priority. 14. The reasons...