The term that describes the mix of all living things in the biosphere is biodiversity.

Here's why:

* Bio refers to life.

* Diversity means variety or difference.

Biodiversity encompasses the variety of life on Earth at all levels, from genes to ecosystems. It includes:

* Species diversity: The number and abundance of different species in a given area.

* Genetic diversity: The variation in genes within a species.

* Ecosystem diversity: The variety of habitats, communities, and ecological processes in a region.