Question

Which of the following class of annelids lacks the ability of regeneration?

• A. Oligochaeta
• B. Polychaeta
• C. Hirudinea
• D. None of the above

Answer 1

The correct option is C Hirudinea

• Phylum Annelida is divided into three classes. They are Polychaeta, Oligochaeta, and Hirudinea.
• The members of the class Polychaeta and Oligochaeta are segmented and process the ability of regeneration while members of class Hirudinea lacks segmentation and ability of regeneration
• For example, Leeches belong to Hirudinea class of annelids and it lacks the ability of regeneration.
• So, the correct answer is 'Hirudinea'.