coral
Corals are marine invertebrates belonging to the class Anthozoa of the phylum Cnidaria. Typically, many identical polyps live in dense colonies. Corals contain important reef producers in tropical oceans that secrete calcium carbonate to form a hard skeleton.
The following tags are aliased to this tag: corals (learn more).
珊瑚是属于门那迪亚氏菌Anthozoa类的海洋无脊椎动物。通常，许多相同的息肉生活在密集的殖民地中。珊瑚包含在热带海洋中的重要珊瑚礁生产商，这些海洋分泌碳酸钙形成硬骨架。