1阅读理解 Researchers in the Florida Keys have determined that coral reefs (珊瑚礁) can be saved from invasive seaweed with the help of a particular species of crab lovingly called the“reef goat”. They also found that the Caribbean king crab can munch seaweed near corals faster than all me...
阅读理解D关键词:coral reefs语篇类型:说明文词数:320 难度:★★★☆☆建议用时:9分钟 正确率::/412. What can be learned about coral reefs?They may be small, but they build big things! Corals(珊瑚 A. They turn calcium into stones.虫), which live in the warm parts of the Earth's oceans...
Study May Help Scientists Identify Which Coral Reefs Can Be SavedSpotts, Pete
Coral can reproduce asexually using polyps, which grow and divide into new cells when sexual maturity is reached. They can also reproduce sexually, by releasing gametes (eggs or sperm), which are carried out in open seas and are fertilized by other corals....
3.Which of the following can be inferred about coral reefs from paragraph 3? A. They are only found on hard structures. B. The most famous ones are supported by solid skeletons. C. They require sclerites to live. D. The jellylike matrix within them contains no limestone. ...
8. B 细节 解 根据第一段中"However, coral reefs are especially easy to be influenced by climate change. Overfishing and pollution have also proved very dangerous to them. Since 1950. half of the world's coral reefs have already been lost."可知.目前珊瑚礁已经消失了一半,面 临灭绝的危险。
根据第二段 "Coral reefs are important because they are home to 25% of all Ocean plants and animals. They are also important because they help keep the sea clean and they protect(保护) nearby coastlines(海岸线) from storms and erosion(侵蚀). They also provide food, jobs and a nice place...
Match the languages A-F with the statements below (Questions 36-40) which describe how a language was saved.Write your answers in boxes 36-40 on your answer sheet. A Welsh B Maori C Faroese D Romansch E Ainu F Kaurna 36 ABCDEF The region in which the language was spoken gained ...
If you’re stumped on what else you can add to your aquarium, we’ve put together a list of other aquatic animals you could be keeping. Some can be kept in conjunction with your fish, while others may need to be kept alone. There is something on this list for everyone, no matter ...
If you’re stumped on what else you can add to your aquarium, we’ve put together a list of other aquatic animals you could be keeping. Some can be kept in conjunction with your fish, while others may need to be kept alone. There is something on this list for everyone, no matter ...