| A | B |
|---|
| nudibranchs | sea slugs that eat coral |
| polyps | the tiny animals that make up a coral reef |
| tentacles | what coral polyps use to catch their food |
| sponges | sometimes burrow into the coral causing erosion |
| humans | the greatest enemy of all! |
| coral bleaching | caused by pollution and increased temperature |
| parrotfish | an algae scraper that grinds coral into sand |
| starfish | use suction to feed on coral polyps |
| plankton | small plants and animals upon which coral feed |
| symbosis | the way in which coral and algae help each other survive |
