Web Results

Coral reef

en.wikipedia.org/wiki/Coral_reef

Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures .... As the name implies, the bulk of coral reefs is made up of coral skeletons from mostly intact coral c...

What is a coral reef made of? - NOAA's National Ocean Service

oceanservice.noaa.gov/facts/coralmadeof.html

A coral reef is made of thin layers of calcium carbonate.

How Reefs Are Made | Coral Reef Alliance

coral.org/coral-reefs-101/coral-reef-ecology/how-reefs-are-made/

Reefs are built by coral polyps as they secrete layers of calcium carbonate. The corals that build reefs are known as “hard” or “reef-building” corals.

What Are Coral Reefs? | Coral Facts - Live Science

www.livescience.com/40276-coral-reefs.html

Oct 8, 2013 ... Coral reefs are large underwater structures composed of the skeletons of coral, which are marine invertebrate animals.

Coral Reefs and Climate Change - What is a coral - Teach Ocean ...

www.teachoceanscience.net/teaching_resources/education_modules/coral_reefs_and_climate_change/what_is_a_coral/

It is made out of the same substance that shellfish use to make their shells–– calcium carbonate. coral heads and coral reefs. Corals can grow into structures as ...

CORAL: ANIMAL, MINERAL OR VEGETABLE? - Coral Reefs ...

oceanworld.tamu.edu/students/coral/coral1.htm

That's because the most common pictures of coral are colonies called reefs. ... and some like the antlers of deer, but they are all made up of tiny coral polyps.

CORAL REEFS: FREQUENTLY ASKED QUESTIONS

www.coralfilm.com/faq.html

What Is The Difference Between Hard And Soft Corals? ... Hard corals, also called reef-building corals, produce a rock-like skeleton made of the same material ...

How Are Coral Reefs Formed? - Coral Reef Facts

www.coral-reef-info.com/coral-reef-formation.html

Coral reef formation involves a variety of processes operating at different spatial scales, and our discussion of how coral reefs are formed reflects that reality.

Coral Reef | Basic Facts About Coral Reefs | Defenders of Wildlife

www.defenders.org/coral-reef/basic-facts

Coral reefs are some of the most diverse ecosystems in the world, housing tens of thousands of marine species. About one-third of all marine fish species live ...

What are corals? | International Coral Reef Initiative

www.icriforum.org/about-coral-reefs/what-are-corals

Corals are invertebrate animals belonging to a large group of colourful and fascinating animals called Cnidaria. Other animals in this group that you may have ...