Which is the Least Inclusive of the Taxonomic Categories Listed

Question

Which is the least inclusive of the taxonomic categories listed below?  
A) Family
B) Phylum
C) Class
D) Order
E) Genus

Accepted Answer

Genus is the least inclusive taxonomic category listed, meaning it groups the smallest number of organisms when compared to family, phylum, class, or order. It is more specific than the family and comes just before species in the hierarchy.