Platyhelminthes, Nemathelminthes and Annelida · Zoology

In the Annelid Hirudo medicinalis (Leech), how is the coelom modified?

  1. It is completely absent (acoelomate)
  2. It is replaced by a water-vascular system
  3. It is packed with botryoidal tissue
  4. It remains as a large fluid-filled space
Show answer and explanation

Correct answer: It is packed with botryoidal tissue

In leeches (Hirudo medicinalis), the coelom is greatly reduced by connective tissue and muscle. The remaining spaces are filled with botryoidal tissue, which is involved in excretion and storage of nutrients.

Difficulty: Medium Question 4 of 20

Practice all 20 Platyhelminthes, Nemathelminthes and Annelida questions

Keep practicing

More Platyhelminthes, Nemathelminthes and Annelida questions