During a Zoology practical, an earthworm dissection reveals a brain-like pair of ganglia connected to a ventral nerve cord. Select the most accurate identification.

Correct Answer: D

cerebral ganglia with ventral nerve cord

Annelids have a more centralized nervous system than cnidarians, including cerebral ganglia and a ventral nerve cord with segmental ganglia. This MCQ belongs to the Annelida topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.