Coralreefs(珊瑚礁)areamongthemostproductiveecosystemsintheworld.They'realsoinseriousdanger—climatechangeandotherthreatsarekillingthemoff.Butresearchershavecomeupwithaninventiontheythinkcouldhelpthereefs:3D-printedcorals.Attheheartofreefecosystemsliesasymbiosis(共生关系)betweencoralsandalgae(藻类).Coralsuselightand...
Coral reefs are one of the most fragile, biologically complex, and diverse marine ecosystem on Earth. This ecosystem is one of the fascinating paradoxes of the biosphere: how do clear and thus nutrient-poor waters support such prolific and productive communities? Part of the answer lies within ...
Once coral reefs are damaged, they are less able to support the many creatures that live on them and the communities near them. When a coral reef supports fewer fish, plants, and animals, it also loses value as a tourist destination.【小题1】Why is biodiversity important to medicines? A...
Coral reefs are one of the most diverse and beautiful ecosystems on Earth. They are often called the "rainforests of the sea" because of their high biodiversity. Corals are actually animals that live in colonies and build hard skeletons made of calcium carbonate. These skeletons form the structu...
Coral Reefs Are Dying - Just When We Need Them MostCoral reefs around the world are rapidly dying - just when humansneed their protective services...Hinckley, Story
【题目】Coral reefs are some of the most diverse and valuable ecosystems on Earth. Coral reefs support more species per unit than any other () , about 4,000 species of fish, 800 species of hard corals and hundreds of other species. Scientists estimate that there may be millions of ...
Coral reefs (珊瑚礁) are among the most productive ecosystems in the world. They're also in serious danger—climate change and other threats are killing them off. But researchers have come up with an invention they think could help the reefs: 3D-printed corals. ...
C Coral reefs are one of the most amazing wonders of the ocean. They are like underwater gardens, full of colors and life. The corals themselves are tiny organisms that build up over time to form vast structures. These structures provide a home for countless species of fish, sea turtles,...
coral reefs an d relat e d habitat s for a part o f their li f e cycles.T h e Nationa I Marin e Fisheries Servic e estimates th e com mercial valu e o f U.S.fisheries from coral reef s is over $100 million , Local economies receiv e billions o f dollars from visit...
Coral reefs are extremely sensitive (敏感的) to warming ocean temperatures. In a report on April 28, the Australian government said it set aside $ 500 million to help protect corals. The money will be spent on reducing water pollution from agriculture, reef monitoring and research on climate ...