Coral reef builders inhabit tropical oceans and secrete calcium carbonate to form hard skeleton. Water sea or ocean on beach with petrified coral stones and rocks. Sea water surface
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Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals.4K HD Video of many varieties of tropical fish swimming around in a coral reef.
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AdobeJim
Ever wonder how stony corals grow to form massive reef structures? The answer is, slowly (1-10 millimeters a year)! Each coral polyp sits in a stony cup, or calyx, the floor of which is called the basal plate. Periodically, the polyp lifts off its base and secretes a new basal plate above the old one, creating a small chamber in the skeleton. Calcium carbonate is then deposited into this chamber, elevating the coral. Learn more here: https://oceanservice.noaa.gov/education/tutorial_corals/coral0
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What is a Coral Reef?
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Coral reefs are built by tiny animals called coral polyps, which secrete calcium carbonate to form hard skeletons, creating large reef structures over thousands of years in warm, shallow oceans. These important ecosystems provide habitats for 25% of marine life, protect coastlines, and support human communities but are threatened by pollution, overfishing, and global warming, which can lead to coral bleaching. Corals rely on a symbiotic relationship with photosynthetic algae, zooxanthellae, whic
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