The Various Taxonomic Levels (Namely, Genera, Classes, Etc

Multiple Choice

The various taxonomic levels (namely, genera, classes, etc.) of the hierarchical classification system differ from each other on the basis of

A) how widely the organisms assigned to each are distributed throughout the environment.
B) their inclusiveness.
C) the relative genome sizes of the organisms assigned to each.
D) morphological characters that are applicable to all organisms.