Question

Which one of the following has least similar characters?

• A. Family
• B. Class
• C. Genus
• D. Species

Answer 1

The correct option is B Class

• The correct hierarchy of classification of various taxons in descending order is given by :
  

Kingdom → Phylum → Class → Order → Family → Genus → Species

• The kingdom is the highest level of classification while species being the most specific.
  
• Since Class occupies the highest level amount all options, it has most generalized characters and organisms share least similar characters at this level.
  

So, the correct option is 'Class'.