Many corals secrete an exoskeleton that builds up to become a coral reef, and coral Reefs Coral reefs are the jungles of the sea. Given these facts, many corals secrete an exoskeleton that builds up to become what among the following options:
- important habitats
 - jungles of the sea
 - seaweed
 - gastropod shells
 - food and shelter
 - dolphins
 - major threat to health
 - oceans


 

  jungles of the sea       