Which of These Have the Most Advanced Nervous System

Question

Which of these have the most advanced nervous system?
A) flatworms
B) segmented worms
C) jellyfish
D) sea anemones

Accepted Answer

Segmented worms, such as earthworms, have a more advanced nervous system compared to flatworms, jellyfish, and sea anemones. They possess a centralized nerve cord and a brain, which are indicative of a more complex nervous structure, allowing for more sophisticated responses to the environment.