珊瑚礁结构为数千种其他海洋生物提供了一个家.故选B.(2)C 推理判断题.根据Coral reef ecosystems are the biggest and most important ecosystems in the ocean.珊瑚礁生态系统是海洋中最大、最重要的生态系统.可知选项"珊瑚礁生态系统
Essentially, polyps are a collection of tiny sea stomachs, taking food from the oceans then forming the building blocks of a coral reef. Encircled with stinging tentacles, is a mouth leading to the polyp’s sac-like stomach. This stomach is where calcium and carbonate ions from the seawater ...
Coral polyps of brain coral (Favia favus) underwater in the coral reef,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招
C. Because coral reefs have survived natural threats for millions of years. D. Because many ocean creatures and plants depend on them. 相关知识点: 试题来源: 解析 1.C 细节理解题。 由第三段中的 “However, there are rules-visitors can only visit 5% of the reef. In this way, they ...
A 2018 UN report predicted that up to 99% of the world's coral reefs may be in danger if global warming continues. These threats(威胁)to coral reefs are very serious, but there is reason to hope that they will survive(生存). If humans take steps toward coral reef conservation, it is...
初三英语完形填空2篇,1.A Coral ReefA coral reef (堡礁) is made up of millions of tiny sea creatures called polyps (水螅).When they die,they ___1___ behind a hard white skeleton (骨架).The living coral polyps (珊瑚虫) build upon these
Three, students encounter problems taking the concepts and theories learned in the readings and applying them to case studies. To address these challenges and improve student learning, a faculty-student team integrated a coral reef living laboratory into a Politics of Sustainability course which ...
Each reef is full of colorful fish as well as coral that forms wonderful patterns. In addition to their beauty, the reefs are an important food source for fish, and for humans.(的确,活的珊瑚礁是了不起的,它是一个“海底之城”,充满了丰富多样的生命。大多数珊瑚礁都可以在温暖的浅海中找到。
In this video join Prof. Hoegh-Guldberg in this underwater video for a close up look at the various polyp that form the coral reef. He explains and exhibts the difference between the common polyp who live a colonial lifestyle versus the Heliofungia, a la
There are nearly a thousand coral species. Reefs are also home to millions of se a creatures, like fish, crabs, turtles, and sharks.Humans don't live in coral reef cities, but we get a lot from them. Reefs create jobs for people in the fishing industry and other related businesses. ...