@acav
Coral reefs are underwater ecosystems built by colonies of tiny animals called polyps . Often called "rainforests of the sea," these ecosystems are among the most biodiverse on Earth.
Here are the key points to understand:
1. What is Coral?
Biologically, coral is an animal (not a plant or rock). It forms a symbiotic relationship with microscopic algae called zooxanthellae . These algae provide food through photosynthesis and give the coral its vibrant colors, while the coral provides protection for the algae.
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