Ecosystem Under the Sea, the Great Barrier Is One

This page is the CodyCross answer for the clue below from Underground Worlds, Group 2178, Puzzle 4 (Burial Grounds).

Question is: Ecosystem Under the Sea, the Great Barrier Is One

and the answer is: CORALREEF

Word Meaning:

CORAL REEF — A reef formed by compacted coral skeletons

Definitions from Wiktionary.

Ecosystem Under The Sea, The Great Barrier Is One - Underground Worlds CodyCross Answers | CodyCross Solutions