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Coral reef

en.wikipedia.org/wiki/Coral_reef

Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. Coral reefs are built by colonies of tiny animals ...

Corals and Coral Reefs | Smithsonian Ocean Portal

ocean.si.edu/corals-and-coral-reefs

Coral reefs contain colorful and amazing animals, but are threatened by human activities. Images, videos, and facts from around the world.

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 ...

NOAA's Coral Reef Conservation Program

coralreef.noaa.gov/

The National Oceanic and Atmospheric Administration's (NOAA) Coral Reef Conservation Program supports effective management and sound science to ...

Coral Reef - Kids Do Ecology

kids.nceas.ucsb.edu/biomes/coralreef.html

LOCATION: Coral reefs are generally found in clear, tropical oceans. Coral reefs form in waters from the surface to about 150 feet (45 meters) deep because ...

Coral reefs | WWF

wwf.panda.org/what_we_do/endangered_species/coral/

Conservation of ocean environments, seas, coasts, the coral reefs and their magnicient diversity of marine animals and plants.

Coral Reefs - National Geographic

video.nationalgeographic.com/video/coral-reefs

Coral reefs are the foundation of many marine ecosystems—and they are in danger.

Coral Reefs

life.bio.sunysb.edu/marinebio/coralreef.html

Coral reefs are the most diverse and beautiful of all marine habitats. Large wave resistant structures have accumulated from the slow growth of 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 - MarineBio.org

marinebio.org/oceans/coral-reefs/

Coral reefs are a precious resource in the ocean because of their beauty and biodiversity. Coral reefs provide shelter for a wide variety of marine life, they ...

Answers
coral reef
NOUN
1.
a reef composed mainly of coral and other organic matter of which parts have solidified into limestone.
Source: Dictionary.com
coral reefs | Define coral reefs at Dictionary.com
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