Coral Reefs Topic trivia
Coral Reefs Topic Mini Quiz
Test your knowledge with these top questions!
Which ocean body contains Australia's Great Barrier Reef?
The Great Barrier Reef stretches across more than 2,300 kilometers of the Coral Sea off Queensland's coast.
Coral polyps share a symbiotic relationship that provides most of their food with:
Zooxanthellae live inside coral tissues and photosynthesize, providing up to 90 percent of the host polyp's energy.
Coral bleaching occurs primarily when polyps expel their symbiotic algae due to:
Thermal stress causes corals to expel zooxanthellae, turning the reef stark white and starving the host polyps.
Coral polyps build hard reef structures by secreting skeletons made of:
Stony corals extract calcium and carbonate ions from seawater to build protective limestone skeletons.