Coral reefs are found in warm, shallow areas of the ocean. They are some of the most biologically-rich ecosystems in the world, supporting thousands of different species of fish, coral, sponges, and more. This information supports which of the following statements? A.
Coral reefs do not contribute a great deal to Earth's biodiversity.

B.
The ocean is a major reservoir of life forms.

C.
Marine fish are only able to live in coral reef ecosystems.

D.
The Atlantic Ocean does not have any coral reefs.