Multiple choice

Which of the following is the most highly modified annelid?

  1. Arenicola

  2. Chaetopterus

  3. Pontobdella

  4. Hirudo medicinalis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pontobdella is a genus of leeches (Hirudinea), which are highly modified annelids adapted for a parasitic lifestyle, showing significant reduction and specialization compared to other annelids.

Keep practicing — related questions