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Which of the following taxonomic ranks is the least specific?
A
Genus
B
Family
C
Species
D
Domain
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1
Begin by understanding the hierarchy of biological classification, which organizes living organisms into nested groups. The main ranks, from most specific to least specific, are: Species, Genus, Family, Order, Class, Phylum, Kingdom, and Domain.
Recognize that 'Species' is the most specific rank, as it refers to a group of organisms that can interbreed and produce fertile offspring.
Identify 'Genus' as the next level up from species, grouping together species that are closely related.
Understand that 'Family' is a broader category than genus, encompassing multiple genera that share certain characteristics.
Finally, note that 'Domain' is the least specific rank, as it is the highest level of classification, dividing all life into three broad categories: Bacteria, Archaea, and Eukarya.