Question

which biome has the smallest temperature range and highest biodiversity levels? tropical rainforest desert taiga grasslands

Explanation:

Tropical rain - forests have a relatively small temperature range due to their proximity to the equator and high biodiversity with a vast number of plant and animal species. Deserts have large temperature ranges, taiga is cold with lower biodiversity, and grasslands also do not match the criteria of small temperature range and high biodiversity like tropical rain - forests.

Answer:

A. tropical rainforest