When you see a plant above ground, such as fern, in which part of the cycle is the plane?

The correct answer is -  the diversity of plants and animals increases.

Explanation:

Ecological succession is the change in the structure of particular species over a time period in an ecosystem or ecological community. The time period of the ecological succession depends on the type of succession and it can be decades to million years.

With progress in the ecological succession over time normally increases the diversity in the species of plants and animals as newer species colonize with the change in time.