Corals are important ecosystem builders; they do this by growing and reproducing. How many different species of coral make up the Great Barrier Reef? Fewer than 10 species116 species2400 species3Over 1 million species4

The vast array of different coral species on the reef are very beautiful. What are corals? Fungi growing on plant roots1Plants with bacteria on their leaves2Bacteria which photosynthesise3Animals with symbiotic algae in their tissue4

Coral reefs are home to hundreds of thousands, if not millions, of species. This makes them some of the most biodiverse places on Earth. They also directly support around 500 million people across the world. How do they do this? Select all that apply.They protect people from floods and stormsThey provide income to countries from tourismThey are a source of fuel for many people living on the coast

Multiple Select QuestionSelect all that applyWhat can be done to protect coral reefs?Multiple select question.Create marine reserves around coral reefs.Allow erosion, which encourages sediments to settle on the reefs.Allow nutrients to wash off land and go to the reefs.Limit fishing in and around coral reefs.

Why are coral reefs so important?  Select ALL correct optionsThey capture and store carbon.1They provide a nursery zone for juvenile fish.2They protect coasts from storms.3They provide a habitat for small animals.4

Which of the following is a biotic factor in the coral reef?