To what ecosystem are coral reefs compared? Why is it important to conserve biodiversity

Coral reefs ecosystem : It is a type of ecosystem which is present inside the ocean water. It is made up of coral, sponges and crustaceans etc.

It is very important to conserve biodiversity of marine because more than twenty five percent of marine animals are live there. If these coral reefs are removed from marine ecosystem, many species of marine such as fishes, crustaceans will be adversely affected.