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 conditions to stay he...
A. They are fishfriendly. B. They are tropical species. C. They depend on algae to survive. D. They can reflect different colors. 相关知识点: 试题来源: 解析 解析:选C 细节理解题。由第三段中的“This is the result of the corals' symbiotic (共生的), or mutually beneficial, relation...
Corals are a form of marine invertebrate. They are formed of hundreds of thousands of individual polyps that form huge colonies. while polyps are soft-bodies, they have a hard calcuim carbonate (limestone) outer covering that give coral its distinctive shape and texture....
Australia's Great Barrier Reef represents the world's largest living structure, a massive city of corals and fish visible from space. This lesson will provide information on the reef's origins and wildlife. Related to this QuestionWhere is the Coral Sea? What ocean has the most coral reefs?
are animal habitats in the deep oceans that need to be considered and that it will affect humans in the long run. I would agree that deep oceans are vast and are located far away from human habitats, but oceans are always changing and moving meaning that the hazardous wastes will reach ...
Corals(珊瑚12. What can be learned about coral reefs?虫), which live in the warm parts of the Earth's oceans, are A. They turn calcium into stones.probably the biggest builders on the planet. Coral polyps turn calcium(钙) from seawater into a kind of hard stone. Slowly, B. They ...
They are also bright, colourful and nice. People call them parrot fish. Of course they are different from parrots; they can not talk. Parrot fish live in warm sea water near corals(珊瑚). They help to clean the corals. They eat very small plants on the corals. This helps the corals ...
③Are the employers really willing to negotiate? (vi.谈判) 3.bond n.纽带;关系 vt.& vi.增强信任关系;使牢固结合 ①You need a strong adhesive to bond wood to metal.( vt.使牢固结合) ②The team has bonded together well....
View Solution (a) How would you differentiate primary productivity from seondary productivity ? (b) Why is productivity maximum in the coral reefs? View Solution Write a note on coral reefs. View Solution Corals are View Solution Corals are View Solution ...
ammonites and the first corals living alongside massive Ichthyosaurs and Plesiosaurs. Pterosaurs, a group of flying reptiles, dominated the air and the first large mammals and dinosaurs roamed the earth. One of the first dinosaurs was the Coelophysis, a carnivore which grew up to 9 feet tall ...