题目What are coral reefs? A. Just beautiful things. B. Only important for coastlines. C. Beautiful and extremely important. D. Useless for the planet. 相关知识点: 试题来源: 解析 C。解析:文章中提到珊瑚礁不仅美丽而且极其重要,它们为无数物种提供栖息地并保护海岸线免受侵蚀。
There are also creatures great and small, from whale to plankton, that make-up the ecosystem. An important part of this ecosystem is coral and coral reefs. Answer and Explanation: Reefs are made up of skeletons of coral which also live on the reef. There are many species of coral. ...
What are coral reefs? A. Home to only a few species of fish. B. Ugly and not diverse. C. One of the most beautiful and diverse parts of the marine ecosystem. D. Not important for the E. cosystem. 相关知识点: 试题来源: 解析 C。解析:“Coral reefs are one of the most beautiful...
Which of the following is related to a coral reef ? Aplanulae Bcydippid Ccoral rubble DAll of theseSubmit The largest coral reef in the world is found near the coast of ABrazil BAustralia CSri Lanka DCubaSubmit Which of the following are the major coral reef areas of India? 1. Gulf...
What are Coral Reefs?:Coral reefs are found underwater and consist of skeletons of coral. Coral are colonial marine invertebrates. They extract calcium carbonate which allows them to have a hard outer "shell" to protect their soft bodies. Each individual coral is called a polyp. Coral reefs ...
C. The shells of fish. D. The rocks in the ocean. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“Coral reefs are formed by the accumulation of the hard skeletons of tiny sea creatures called polyps.”,即珊瑚礁是由微小的海洋生物——珊瑚虫的坚硬骨骼堆积而成。反馈 收藏 ...
Coral reefs are underwater structures that act as an aquatic ecosystem and help protect coastal areas from erosion. Discover facts about coral reefs types, as well as their importance and conservation efforts. Definition Big cities are teeming with life. There is a wide variety of people to me...
B. Tiny coral polyps. C. Sea turtles. D. Divers. 相关知识点: 试题来源: 解析 B。中文解析:文章中明确提到“The coral reefs themselves are like underwater cities, built by tiny coral polyps over a very long time.”,所以珊瑚礁是由珊瑚虫建造的,故选B。
Coral Reefs: Coral belong in the phylum Cnideria and are formed by colonies of coral polyps. The polyps are held together by calcium carbonate. Coral reefs can be found in tropical oceans near the equator. Coral reefs are homes to many marine life, including crabs, fish, shrimp, sea urchin...
Corals are found all over the world's oceans, from the Aleutian Islands off the coast of Alaska to the warm tropical waters of the Caribbean Sea. The biggest coral reefs are found in the clear, shallow waters of the tropics and subtropics. The largest of these coral reef systems, theGreat...