Coral reefs, found only in warm, shallow waters, are made up of groups of tiny animals called coral. When coral die, they leave behind hard skeletons(骨架) that build up and form reefs. As new coral grow on top, the reefs grow bigger. 1 Some look like boats, while others are shape...
Coral reefs are mostly made up of numerous smaller coral colonies; these colonies are in turn made up of thousands of minute polyps, which secrete a calcium carbonate skeleton. The deposition rate for individual coral species varies, but generally ranges between 0.1 mm and 10.0 cm per year. ...
to 30° S of the equator. Deep water coral can exist at greater depths and colder temperatures at much higher latitudes, as far north as Norway. Coral reefs are rare along the American and African west coasts. This is due primarily to upwelling and strong cold coastal currents that reduce ...
Are coral reefs producers? Where do coral reefs exist with sea mounts? What is the study of coral reefs called? What is the initial source of energy for coral reefs? How fast do coral reefs grow? What eats sponges in a coral reef? What do sea turtles eat in a coral reef? Are phytop...
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....
These are unusual animals, protected be a series of external skeleton made up of hard plates. Echinoderms also display “radial symmetry” – that is there is no “front” or “back” end. Of the five distinct types of echinoderms that can be found on and around coral reefs, we here ...
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 ...
Coral reefs are crucial to the biodiversity of the world's oceans. They cover less than 1% of the ocean floor, but provide food and shelter to over 25% of all ocean creatures—up to 2 million species! Disney scientists and conservationists are working hard in Florida and around the world ...
to 30° S of the equator. Deep water coral can exist at greater depths and colder temperatures at much higher latitudes, as far north as Norway. Coral reefs are rare along the American and African west coasts. This is due primarily to upwelling and strong cold coastal currents that reduce ...
Crown of Thorns Starfish and Coral Reefs The crown of thorns starfish, Acanthaster Tlanci, is large, twenty-five to thirty-five centimeters in diameter, and has seven to twenty-one arms that are covered in spines. It feeds primarily on coral and is found from the Indian Ocean to the west...