Question

Which biome tends to have the least biodiversity?
a) taiga
b) grassland
c) tropical rain forest
d) tundra

Answer 1

The least biodiversity tends to have tundra: 1,700 species of vascular plants and only 48 species of land mammals (see https://en.wikipedia.org/wiki/Tundra)

Other bioms have much more species.

Answer. d).