alleryStart learning →The category directly below the domain in the classification hierarchy is the:
AGenus
BKingdom
CPhylum
DFamily
Answer & Solution
Correct answer: B. Kingdom
1. Classification nests each rank inside the one above it.
2. The three domains sit at the top of that nesting.
3. Within each domain is a second category called a kingdom.
4. Phylum, family and genus all sit further down the hierarchy.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 20 'Phylogenies and the History of Life', sections 20.1-20.3_
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