Test your knowledge: Coral reefs

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Every once in a while it is fun to test your knowledge and see if you are as smart as you think you are in a certain subject. Today it is time see how well you know coral reefs. Have fun with these ten questions …

1. It has been found that some coral reefs have been growing since a) 10 million years old b) 50 million years ago c) 1 million years ago.
2. Single coral organisms, called polyps, can live on their own. true or false?
3. Coral reefs are typically found in which zone of the ocean? a) the twilight zone b) the sunlight zone c) mid-day zone
4. Coral reefs are simply coral colonies that have joined together. true or false?
5. Corals are a) insectivores b) carnivores 3) herbivores.
6. Corals are a) endangered b) threatened 3) extinct.
7. What is credited to the diverse colors of coral reefs?
8. Coral reefs support over a) 10% b) 25% c) 50% of life in the oceans.
9. Corals are closely related to a) horseshoe crabs and spiders b) sea anemones and jellies c) crabs and shrimp.
10. Corals will die immediately if they do not feed off the byproducts of photosynthesis of the algae they host. true or false?

Find your answers here.