What is the term for a group or level of organization into which organisms are classified?

• A. Species Only
• B. Taxa
• C. Phyla
• D. Clades

Answer: (B)

Taxa is the general term for groups or levels used in classification that organize organisms by shared characteristics and ancestry. In biology, organisms are placed into different ranks such as species, genus, family, order, class, phylum, kingdom, and domain—each of these is a taxon, and collectively they are referred to as taxa. The plural form taxa covers grouping at any rank, which is why it’s the best answer here. The other terms point to specific ranks or concepts: a species is a particular, most specific group; a phylum is one specific rank above class; a clade is a group defined by common ancestry, a concept used in cladistics rather than a general label for any level of classification.