Question

what is a defining feature of the taiga biome? coniferous trees grasses cacti broadleaf trees

Explanation:

Taiga biome, also known as boreal forest, is characterized by coniferous trees (evergreen trees with needle - like leaves). Grasses are more typical of grassland biomes. Cacti are found in desert biomes. Broadleaf trees are common in temperate deciduous forests.

Answer:

Coniferous trees