Answered

Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.

Online Content: Site 1

1. What are reef-producing corals called?
2. What is the coral reef composed of?
3. How are they created? (Site 1)



Answer :

GinnyAnswer

Final answer:

Coral reefs are structures formed by coral organisms secreting calcium carbonate to create their skeletons, leading to the formation of extensive reef systems.


Explanation:

Coral Reefs: Nature's Underwater Wonders

Reef-producing coral is known as coral. The coral reef itself is primarily composed of calcium carbonate skeletons created by coral organisms. These underwater structures are formed as corals secrete calcium carbonate to form an external skeleton, gradually accumulating into a reef.


Learn more about Coral Reefs here:

https://brainly.com/question/42443777