If the amount of available niches in an ecosystem increases, what will happen to that ecosystem's biodiversity?

a. not enough information

b. no change in biodiversity

c. decreased biodiversity

d. increased biodiversity

Increased biodiversity  will happen to that ecosystem's biodiversity.

Explanation:

Niche is the interaction between the species of a community. Niche is the environment that is perfect for the species to grow. It mainly depends on the adaptability, feeding habits of the particular species to their environment.  

The natural selection though acts when two species are accumulated in a niche the best one thrives hard to survive developing their potentiality.

When the available niche increases it increases the number of species in the community which in turn causes increased bio diversity.