Nature · 1
What is the Great Barrier Reef made of?
Answer
Coral polyps
The Great Barrier Reef is built by tiny colonial animals called coral polyps that secrete calcium carbonate skeletons to create the reef structure. Over thousands of years, these polyps accumulate to form massive structures visible from space. The reef supports over 1,500 fish species, 400 coral types, and countless other organisms, making it one of Earth's most biodiverse ecosystems.
💡 Did you know?
The Great Barrier Reef is visible from space and supports 1,500+ fish species.
Other options people guess
- Stone
- Algae
- Sand
Topics
- coral
- ocean
- Australia
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