why is coral bleaching bad

Coral Bleaching – Why Do Coral Bleach?

Corals are colony-forming polyps, invertebrates (backboneless animals) that excrete a calcium carbonate skeleton, which forms the coral reefs. The polyps live in symbiosis with photosynthetically active algae (zooxanthellae). The algae supply the coral polyp with nutrients such as glucose, glycerol … Read more