The correct option is
B Unit of classification
The correct option is B:
Explanation of the correct option:
- In the discipline of taxonomy or biological categorization, a taxon (plural: taxa) is a unit of classification for a particular species.
- The hierarchical order from Kingdom to subspecies is known as taxa.
- Kingdom, phylum, class, order, family, genus, species, and subspecies are all in this hierarchy.
Explanation of the incorrect options:
Option A:
- Species are the group of organisms that are capable of interbreeding.
- Organisms belonging to a species have similar characteristics.
Option C:
In biological classification, the kingdom is the highest rank in the taxonomic hierarchy.
Final answer: Taxon is the unit of classification.