Overview:

Diversity in biology is defined as the number of species or organisms in an environment.

Advantages of diversity:

1. More biological diversity means more niches and roles are played by each organisms that helps to balance the ecosystem. For example: more species diversity results in healthy ecosystems as it can recover from various disasters.

2. Biodiversity increases productivity in an ecosystem as each species has a role to play. For example: More number of plant indicates more variety of crops.