Final answer:
The Great Barrier Reef is formed from coral, which are the limestone skeletons of tiny sea animals called polyps.
Step-by-step explanation:
True
The Great Barrier Reef is formed from coral, which are the limestone skeletons of tiny sea animals called polyps. These polyps secrete calcium carbonate to build their hard exoskeletons, which over time creates the reef structure. The reef provides habitat for numerous marine species and is considered one of the most important and diverse ecosystems on the planet.
Examples of coral species that contribute to the Great Barrier Reef include Acropora, Porites, and Montipora. The reef's formation is dependent on various factors such as water temperature, salinity, and availability of sunlight.
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