Large Vegetation Units (Forest, Woodland, Grassland, Shrubland, Desert, and Tundra) $\underline { \text { floristic components } }$

Multiple Choice

Large vegetation units (forest, woodland, grassland, shrubland, desert, and tundra) , i.e., the $\underline { \text { floristic components } }$ of a terrestrial ecosystem, are called

A) formation classes.
B) biomes.
C) plant life-form designations.
D) ecosystems.