Fact 1: Biodiversity increases the productivity and stability of ecosystems.

Fact 2: Oceans are one of the largest ecosystems in the world.

Given the two facts above, answer the question "Biodiversity increases the productivity and stability of what?" with the following options: 
- ferns
 - fungi
 - animals
 - bushes
 - trees
 - wetland
 - oceans
 - plants


 

       oceans  