Corals|noun|Marine invertebrates in the class Anthozoa that typically live in compact colonies of many identical individual polyps
Polyps|noun|Small and simple sea creatures that together make up corals
Coral reef|noun|A large underwater structure made of dead and living corals
Colorful|adjective|Having much or varied color; bright
Ocean|noun|The vast body of salt water that covers almost three fourths of the earth's surface