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https://www.noaa.gov › ... › marine-life › coral-reef-ecosystems
Coral reefs are some of the most diverse ecosystems in the world Coral polyps the animals primarily responsible for

https://www.britannica.com › science › coral-reef
Coral reef ridge or hummock formed in shallow ocean areas by algae and the calcareous skeletons of coral polyps

https://www.unep.org › ... › blue-ecosystems › coral-reefs
Coral reefs underpin the safety coastal protection well being food security and economic security of hundreds of

https://education.nationalgeographic.org › resource › coral-reefs
Coral reefs are important ocean habitats and offer a compelling case of the risks of climate change Reefs provide a large fraction of

https://www.epa.gov › coral-reefs › basic-information-about-coral-reefs
Coral reefs are among the most biologically diverse and valuable ecosystems on Earth This web site describes the

https://oceanservice.noaa.gov › ocean › corals
An overview of the biology of and threats to coral reefs as well as efforts being made to conserve and protect them It includes

https://oceanservice.noaa.gov › education › tutorial_corals
This tutorial is an overview of the biology of and threats to coral reefs as well as efforts being made to conserve and protect them It

https://ocean.si.edu › ocean-life › invertebrates › corals-and-coral-reefs
Coral reefs are the most diverse of all marine ecosystems They teem with life with perhaps one quarter of all ocean species

https://www.noaa.gov › explainers › coral-reefs-essential-and-threatened
Healthy coral reefs are among Earth s most biologically diverse and economically valuable ecosystems and are vital around the