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...
Decor that is made from coral or that uses coral in its original form is quite common. Some corals are low and bunched, forming almost a round cluster, and some are quite long and slender. Due to the wide variety, coral can appeal to many different aesthetic tastes, traditional, modern, ...
What do we know about corals? A. They do great harm to the polyps. B. They provide shelter for many sea creatures. C. They are members of the plant family. D. They usually move freely in the water. 相关知识点: 试题来源:
87:6684 What are corals?: Williams, G.C., 1986. Sagittarius, 1(2):11–15doi:10.1016/0198-0254(87)91147-2NoneELSEVIERDeep Sea Research Part B:oceanographic Literature Review
Corals come in all shapes and sizes, but the basic plan is the same; polyps live as a surface layer on some sort of structure, be it hard and inflexible or rubbery.The hard, or true corals, for which reefs are most famous, build limestone skeletons beneath the living tissue.Soft corals...
They are also bright, colourful and nice. People call themparrot fish. Of course they are different from parrots; they can not talk. Parrot fish livein warm sea water near corals(珊瑚). They help to clean the corals They eat very smallplants on the corals. This helps the corals grow. ...
callcoralisthehardcoveringcreatedbymillionsoftinycoralswhichareanimals,althoughthey lookalittlelikeplants.Howdoesacoralreefform?Whenacoraldies,itsshellremains,andothercoralsgrowonit.Overmillionsofyearspilesofremainsbecomehardunderwater rocks---thereefs.Coralshavemanyshapes,sizesandcolours,andreefscanlooklike...
corals, as their name implies, do not form solid skeletons; instead they secrete limestone crystal structures called sclerites, which are embedded within a jelly like matrix beneath the polyps. When they die, little is left of most soft corals as the limestone element of their makeup is so ...
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....
Let metell you.Coral reefs are found only in warm shallow water. These reefs are madeup of tiny groups of animals called coral.When corals die,they leave behindhard skeletons that build up and form reefs. As new coral grow on top,thereefs grow bigger and bigger.The coral can be hard ...