What Is Coral? The corals that form reefs aren’t rocks or plants. Corals are made up of groups of tiny animals called polyps (PAH-lips). Most polyps are smaller than a pea. Thousands of polyps can live on a piece of coral. Where Do Corals Live? Coral reefs need certain living condi...
According to paragraph 1, what is coral made of? A. Rocks. B. Colonies. C. Animals. D. Reefs. 如何将EXCEL生成题库手机刷题 > 下载刷刷题APP,拍照搜索答疑 > 手机使用 分享 反馈 收藏 举报 参考答案: C 复制 纠错 举一反三 《生产、生活供水突发事件应急预案》适用于中国铁路( )局集团有限...
A coral reef is a highly productive and dynamic ecosystem. Like a tropical rainforest, they are made up of and provide support for a large portion of the world's biodiversity although they are primarily characterized by reef-building corals....
双语阅读 ‖ 珊瑚是什么? What Is Coral ?The hard, dry corals seen in stores and museums are made up of the combined skeletons of tiny creatures which once lived joined together as a colony in the sea. The coral animal, or polyp, measures only about a...
following day (when the coral polyp is retracted and lying on its new structure), the valleys between the ridges fill in with more calcium carbonate and the skeleton takes on a smoother appearance.Because the skeleton of hard corals is made of limestone or calcium carbonate, it is pure white...
What are coral reefs made of? Question:What are coral reefs made of?Coral Reefs:Coral reefs are present around the world but most are found warmer, tropical waters. The largest coral reef in the world, The Great Barrier Reef, is located in Australia and is 2300 kilometers long.Answer...
Unit 5 What are the shirts made of?Oo。2.Chopsticks are two long, thin, usually tapered(圆锥形的), pieces of wood. Bamboo is the most common material, but they are also made of different types of wood, as well as plastic, animal bone, ivory, metal, coral and jade(玉器). It is ...
Coral reefs are one of the busiest underwater ecosystems. Many fish come to the coral reefs to feed and many people go diving at coral reefs for the views. And scientists are continually studying them.Answer and Explanation: Coral reefs are made from the skeletons of corals. The skeletons ...
following day (when the coral polyp is retracted and lying on its new structure), the valleys between the ridges fill in with more calcium carbonate and the skeleton takes on a smoother appearance. Because the skeleton of hard corals is made of limestone or calcium carbonate, it is pure ...
What is a coral reef for kids? A coral reef isa large underwater structure made of dead and living corals. In most healthy reefs, stony corals are predominant. They are built from colonial polyps from the phylum Cnidaria which secrete an exoskeleton of calcium carbonate. ... The reef acts...